Original Bang & Olufsen MMC4 Cartridge/StylusUk stock ready for dispatch NOW Sounds greatChecked on a spectrum analyser, delicate, accurate and precise matching perfectly to its published specificationTracking perfectly with 1.2gram vertical tracking force MMC4 Specifications Description Titanium-bonded elliptical diamond, mounted on a tapered aluminium cantilever Tracking force - grams 1.2 Diamond Stylus Elliptical Cantilever tube. Tap. alum. . Effective tip mass mg 0,4 Compliance mg/mN 25 Frequency 20-20000 Hz=/-dB 2,5 Channel separation 1000>dB 22 Output mV/cm/s RMS 0,6 Cartridge weight gram 1,6 Courtesy of Beoworld.org MMC stands for Moving Micro-Cross; the patented moving-iron principle upon which all B&O cartridges were based. This unique system employed a cross-shaped armature which, among other advantages, guaranteed exceptional stereo separation since each channel moves on a separate axis. The job of any pickup cartridge is to transform the records physical profile (groove modulation) into corresponding electrical signals (which are then amplified or enlarged by the amplifier and turned into audible sound waves by the loudspeaker. A cartridge must perform three separate and exacting tasks if it is to do this job successfully. It must function mechanically (the movements of the stylus in the groove); it must function magnetically (using the physical movements to create changes in a magnetic field); and it must function electrically (using the changes in magnetic flux to generate an electrical current). At each stage, one type of energy is transferred into another, quite different, type. And the transfer must be perfect, with no energy lost and none added from extraneous sources.No cartridge will ever reach this ideal unless the Laws of Physics can be repealed. However, by understanding the relationships between the three transfer stages and continually applying refined engineering techniques, B&Os belief was that each stage of cartridge improvement would bring each successive cartridge closer to the ideal. Record wear and the cartridge If you take music seriously the value of your record collection is likely to be high. Many of your records are likely to be irreplaceable. You will also know that the signals pressed into your vinyl discs are very fragile indeed. The pickup cartridge can be the discs worse enemy since an ill-suited cartridge can mark a record for life in a single play. While B&O is aware that cartridge specifications are inter-related, their research shows consistently that Effective Tip Mass (ETM) is one of the major factors affecting record wear. ETM is the equivalent of the amount of inertia the groove sees in moving or accelerating the stylus tip. Consequently, the higher the ETM value, the higher the force required for a given constant acceleration. Obviously, more force results in more wear. Three elements contribute to ETM. The stylus tip (diamond) contributes with its entire weight and mass. The armature contributes between 5 - 20% of its weight and mass; the cantilever around 30%. B&O has been able to reduce ETM substantially by refining these elements and building them into an integrated unit. The result is a system which not only reduces damage to the groove walls dramatically, but also provides exceptional performance at all frequencies.

Original Bang & Olufsen MMC20S Cartridge/StylusUk stock ready for dispatch NOW Checked on a spectrum analyser, delicate, accurate and precise matching perfectly to its published specificationTracking perfectly with 1.5gram vertical tracking forceTested on a Beogram 2400-2 and 4002 and sounds crisp and clear on both channelsThe model replacement for the MMC3000Matches black systems like the Beocenter 3600 - available with a cartridge in my other listings giving you the look of the original systemKeep playing your vinyl in the manner it was meant to be heardLow Effective Tip Mass protects your most precious vinyl from wear and damage Courtesy of Beoworld.orgMMC stands for Moving Micro-Cross; the patented moving-iron principle upon which all B&O cartridges were based. This unique system employed a cross-shaped armature which, among other advantages, guaranteed exceptional stereo separation since each channel moves on a separate axis.The job of any pickup cartridge is to transform the records physical profile (groove modulation) into corresponding electrical signals (which are then amplified or enlarged by the amplifier and turned into audible sound waves by the loudspeaker.A cartridge must perform three separate and exacting tasks if it is to do this job successfully. It must function mechanically (the movements of the stylus in the groove); it must function magnetically (using the physical movements to create changes in a magnetic field); and it must function electrically (using the changes in magnetic flux to generate an electrical current). At each stage, one type of energy is transferred into another, quite different, type. And the transfer must be perfect, with no energy lost and none added from extraneous sources.No cartridge will ever reach this ideal unless the Laws of Physics can be repealed. However, by understanding the relationships between the three transfer stages and continually applying refined engineering techniques, B&Os belief was that each stage of cartridge improvement would bring each successive cartridge closer to the ideal. Record wear and the cartridgeIf you take music seriously the value of your record collection is likely to be high. Many of your records are likely to be irreplaceable. You will also know that the signals pressed into your vinyl discs are very fragile indeed. The pickup cartridge can be the discs worse enemy since an ill-suited cartridge can mark a record for life in a single play.While B&O is aware that cartridge specifications are inter-related, their research shows consistently that Effective Tip Mass (ETM) is one of the major factors affecting record wear. ETM is the equivalent of the amount of inertia the groove sees in moving or accelerating the stylus tip. Consequently, the higher the ETM value, the higher the force required for a given constant acceleration. Obviously, more force results in more wear.Three elements contribute to ETM. The stylus tip (diamond) contributes with its entire weight and mass. The armature contributes between 5 - 20% of its weight and mass; the cantilever around 30%. B&O has been able to reduce ETM substantially by refining these elements and building them into an integrated unit. The result is a system which not only reduces damage to the groove walls dramatically, but also provides exceptional performance at all frequencies. This was the last of the MMC 20 range to be discontinued with cartridges being available late into the 1990s. It produced a typical warm B&O sound though lacked some of the more expensive models treble clarity. With an ETM of only 0.5mg, it was a fine cartridge and sturdy with it.The company’s range of MMC cartridges were integrated units, combining both stylus and cartridge as one slip-on unit. Matched, balanced and sealed in the factory each unit was meticulously computer tested with its results printed off and offered to the customer at time of sale. The printout included such information as output voltage, relative voltage output (channel balance), channel separation and frequency response. Manufactured: 1979 - 1985 Designer: Jacob Jensen Colours: BlackMMC 20 CartridgesPrior to the release of MMC1 - 5 cartridges, Bang & Olufsen had the following MMC range of combined styli and cartridges:MMC 20 S is a stereo cartridge with a spherical framed diamond Any questions just get in touch, Id be glad to help.

Original Bang & Olufsen MMC2 Cartridge/StylusNewly refurbished Bang & Olufsen MMC2.Refurbished suspension with an original Bang & Olufsen nude multi-radial contact line diamond mounted on a sapphire tube cantilever.Tracking perfectly with 1gram vertical tracking forceMMC2 Specifications :Nude multi-radial Contact Line diamond mounted on a sapphire cantileverTracking force 1 gramNude Contact Line diamond stylusCantilever tube - sapphire Effective tip mass 0.3 mgCompliance mg/mN 30Frequency 20-20000 Hz=/-dB 1.5Channel separation 1000>dB 25Output mV/cm/s RMS 0.6Cartridge weight 1.6 grams Courtesy of Beoworld.orgMMC stands for Moving Micro-Cross; the patented moving-iron principle upon which all B&O cartridges were based. This unique system employed a cross-shaped armature which, among other advantages, guaranteed exceptional stereo separation since each channel moves on a separate axis.The job of any pickup cartridge is to transform the records physical profile (groove modulation) into corresponding electrical signals (which are then amplified or enlarged by the amplifier and turned into audible sound waves by the loudspeaker.A cartridge must perform three separate and exacting tasks if it is to do this job successfully. It must function mechanically (the movements of the stylus in the groove); it must function magnetically (using the physical movements to create changes in a magnetic field); and it must function electrically (using the changes in magnetic flux to generate an electrical current). At each stage, one type of energy is transferred into another, quite different, type. And the transfer must be perfect, with no energy lost and none added from extraneous sources.No cartridge will ever reach this ideal unless the Laws of Physics can be repealed. However, by understanding the relationships between the three transfer stages and continually applying refined engineering techniques, B&Os belief was that each stage of cartridge improvement would bring each successive cartridge closer to the ideal. Record wear and the cartridgeIf you take music seriously the value of your record collection is likely to be high. Many of your records are likely to be irreplaceable. You will also know that the signals pressed into your vinyl discs are very fragile indeed. The pickup cartridge can be the discs worse enemy since an ill-suited cartridge can mark a record for life in a single play.While B&O is aware that cartridge specifications are inter-related, their research shows consistently that Effective Tip Mass (ETM) is one of the major factors affecting record wear. ETM is the equivalent of the amount of inertia the groove sees in moving or accelerating the stylus tip. Consequently, the higher the ETM value, the higher the force required for a given constant acceleration. Obviously, more force results in more wear.Three elements contribute to ETM. The stylus tip (diamond) contributes with its entire weight and mass. The armature contributes between 5 - 20% of its weight and mass; the cantilever around 30%. B&O has been able to reduce ETM substantially by refining these elements and building them into an integrated unit. The result is a system which not only reduces damage to the groove walls dramatically, but also provides exceptional performance at all frequencies. Any questions just get in touch, Id be glad to help.

Original Bang & Olufsen MMC4 Cartridge/StylusUk stock ready for dispatch NOW Sounds greatChecked on a spectrum analyser, delicate, accurate and precise matching perfectly to its published specificationTracking perfectly with 1.2gram vertical tracking force MMC4 Specifications Description Titanium-bonded elliptical diamond, mounted on a tapered aluminium cantilever Tracking force - grams 1.2 Diamond Stylus Elliptical Cantilever tube. Tap. alum. . Effective tip mass mg 0,4 Compliance mg/mN 25 Frequency 20-20000 Hz=/-dB 2,5 Channel separation 1000>dB 22 Output mV/cm/s RMS 0,6 Cartridge weight gram 1,6 Courtesy of Beoworld.org MMC stands for Moving Micro-Cross; the patented moving-iron principle upon which all B&O cartridges were based. This unique system employed a cross-shaped armature which, among other advantages, guaranteed exceptional stereo separation since each channel moves on a separate axis. The job of any pickup cartridge is to transform the records physical profile (groove modulation) into corresponding electrical signals (which are then amplified or enlarged by the amplifier and turned into audible sound waves by the loudspeaker. A cartridge must perform three separate and exacting tasks if it is to do this job successfully. It must function mechanically (the movements of the stylus in the groove); it must function magnetically (using the physical movements to create changes in a magnetic field); and it must function electrically (using the changes in magnetic flux to generate an electrical current). At each stage, one type of energy is transferred into another, quite different, type. And the transfer must be perfect, with no energy lost and none added from extraneous sources.No cartridge will ever reach this ideal unless the Laws of Physics can be repealed. However, by understanding the relationships between the three transfer stages and continually applying refined engineering techniques, B&Os belief was that each stage of cartridge improvement would bring each successive cartridge closer to the ideal. Record wear and the cartridge If you take music seriously the value of your record collection is likely to be high. Many of your records are likely to be irreplaceable. You will also know that the signals pressed into your vinyl discs are very fragile indeed. The pickup cartridge can be the discs worse enemy since an ill-suited cartridge can mark a record for life in a single play. While B&O is aware that cartridge specifications are inter-related, their research shows consistently that Effective Tip Mass (ETM) is one of the major factors affecting record wear. ETM is the equivalent of the amount of inertia the groove sees in moving or accelerating the stylus tip. Consequently, the higher the ETM value, the higher the force required for a given constant acceleration. Obviously, more force results in more wear. Three elements contribute to ETM. The stylus tip (diamond) contributes with its entire weight and mass. The armature contributes between 5 - 20% of its weight and mass; the cantilever around 30%. B&O has been able to reduce ETM substantially by refining these elements and building them into an integrated unit. The result is a system which not only reduces damage to the groove walls dramatically, but also provides exceptional performance at all frequencies.

Original Bang & Olufsen MMC3 Cartridge/StylusUk stock ready for dispatch NOW Sounds greatChecked on a spectrum analyser, delicate, accurate and precise matching perfectly to its published specificationTracking perfectly with 1.2gram vertical tracking force MMC3 Product SpecificationsDescription Nude elliptical diamond mounted on a tapered aluminium cantilever Tracking force - grams 1.2Diamond Stylus Elliptical nudeCantilever tube Tap. alum. .Effective tip mass mg 0,35Compliance mg/mN 25Frequency 20-20000 Hz=/-dB 2Channel separation 1000>dB 25Output mV/cm/s RMS 0,6 Cartridge weight gram 1,6 Courtesy of Beoworld.org MMC stands for Moving Micro-Cross; the patented moving-iron principle upon which all B&O cartridges were based. This unique system employed a cross-shaped armature which, among other advantages, guaranteed exceptional stereo separation since each channel moves on a separate axis. The job of any pickup cartridge is to transform the records physical profile (groove modulation) into corresponding electrical signals (which are then amplified or enlarged by the amplifier and turned into audible sound waves by the loudspeaker. A cartridge must perform three separate and exacting tasks if it is to do this job successfully. It must function mechanically (the movements of the stylus in the groove); it must function magnetically (using the physical movements to create changes in a magnetic field); and it must function electrically (using the changes in magnetic flux to generate an electrical current). At each stage, one type of energy is transferred into another, quite different, type. And the transfer must be perfect, with no energy lost and none added from extraneous sources.No cartridge will ever reach this ideal unless the Laws of Physics can be repealed. However, by understanding the relationships between the three transfer stages and continually applying refined engineering techniques, B&Os belief was that each stage of cartridge improvement would bring each successive cartridge closer to the ideal. Record wear and the cartridge If you take music seriously the value of your record collection is likely to be high. Many of your records are likely to be irreplaceable. You will also know that the signals pressed into your vinyl discs are very fragile indeed. The pickup cartridge can be the discs worse enemy since an ill-suited cartridge can mark a record for life in a single play. While B&O is aware that cartridge specifications are inter-related, their research shows consistently that Effective Tip Mass (ETM) is one of the major factors affecting record wear. ETM is the equivalent of the amount of inertia the groove sees in moving or accelerating the stylus tip. Consequently, the higher the ETM value, the higher the force required for a given constant acceleration. Obviously, more force results in more wear. Three elements contribute to ETM. The stylus tip (diamond) contributes with its entire weight and mass. The armature contributes between 5 - 20% of its weight and mass; the cantilever around 30%. B&O has been able to reduce ETM substantially by refining these elements and building them into an integrated unit. The result is a system which not only reduces damage to the groove walls dramatically, but also provides exceptional performance at all frequencies.

Original Bang & Olufsen MMC3 Cartridge/StylusUk stock ready for dispatch NOW Sounds greatChecked on a spectrum analyser, delicate, accurate and precise matching perfectly to its published specificationTracking perfectly with 1.2gram vertical tracking force MMC3 Product SpecificationsDescription Nude elliptical diamond mounted on a tapered aluminium cantilever Tracking force - grams 1.2Diamond Stylus Elliptical nudeCantilever tube Tap. alum. .Effective tip mass mg 0,35Compliance mg/mN 25Frequency 20-20000 Hz=/-dB 2Channel separation 1000>dB 25Output mV/cm/s RMS 0,6 Cartridge weight gram 1,6 Courtesy of Beoworld.org MMC stands for Moving Micro-Cross; the patented moving-iron principle upon which all B&O cartridges were based. This unique system employed a cross-shaped armature which, among other advantages, guaranteed exceptional stereo separation since each channel moves on a separate axis. The job of any pickup cartridge is to transform the records physical profile (groove modulation) into corresponding electrical signals (which are then amplified or enlarged by the amplifier and turned into audible sound waves by the loudspeaker. A cartridge must perform three separate and exacting tasks if it is to do this job successfully. It must function mechanically (the movements of the stylus in the groove); it must function magnetically (using the physical movements to create changes in a magnetic field); and it must function electrically (using the changes in magnetic flux to generate an electrical current). At each stage, one type of energy is transferred into another, quite different, type. And the transfer must be perfect, with no energy lost and none added from extraneous sources.No cartridge will ever reach this ideal unless the Laws of Physics can be repealed. However, by understanding the relationships between the three transfer stages and continually applying refined engineering techniques, B&Os belief was that each stage of cartridge improvement would bring each successive cartridge closer to the ideal. Record wear and the cartridge If you take music seriously the value of your record collection is likely to be high. Many of your records are likely to be irreplaceable. You will also know that the signals pressed into your vinyl discs are very fragile indeed. The pickup cartridge can be the discs worse enemy since an ill-suited cartridge can mark a record for life in a single play. While B&O is aware that cartridge specifications are inter-related, their research shows consistently that Effective Tip Mass (ETM) is one of the major factors affecting record wear. ETM is the equivalent of the amount of inertia the groove sees in moving or accelerating the stylus tip. Consequently, the higher the ETM value, the higher the force required for a given constant acceleration. Obviously, more force results in more wear. Three elements contribute to ETM. The stylus tip (diamond) contributes with its entire weight and mass. The armature contributes between 5 - 20% of its weight and mass; the cantilever around 30%. B&O has been able to reduce ETM substantially by refining these elements and building them into an integrated unit. The result is a system which not only reduces damage to the groove walls dramatically, but also provides exceptional performance at all frequencies.

Vintage B&O Bang & Olufsen Beocenter 1800 only. The lid has damage to one side where the hinge is broken as seen in the images. Comes with no accessories . Works well but only this Ive noticed is the pickup button sometimes doesnt work not sure if this is my fault or not. Note MMC3000 STYLUS is not included. Collection only from Farnborough.-Any orders placed now will be dispatched from beginning of July.

Bang & Olufsen Beocenter 2800 Record Player Radio Untested. This music centre is untested and comes without speakers. Here is what I know. 1.The turntable spins and changes speed and I am told it works and i dont see why it wouldnt but would need a stylus to test. 2.I have plugged in but no lights come up on the radio functions so Im not sure if it works. 3.The front buttons are quite sticky and dont pop straight out. 4.Lid is good - no cracks 5.It comes with original polystyrene padding for turntable and tone arm plus original manual. 6.Will be securely packaged and insured for delivery. Hopefully it works or is an easy fix ,otherwise lots of good spares.

This auction includes an original vintage Bang & Olufsen (B&O) model MMC 20E stereo turntable cartridge and stylus in very clean and excellent working condition. This cartridge was originally purchased as a backup however, it was never used except for testing it for this listing. This cartridge tracks perfectly and sounds great. This cartridge comes as shown in the photos. Own this vintage B&O MMC-20E turntable cartridge for a great price. This item is not available for local pickup, it will need to be shipped to your location. All of my items are packed very well for a safe trip and I include full shipping damage insurance coverage with all of my items. International buyers may be responsible for customs fees, import taxes, and duties.

Bang & Olufsen Beocenter 2800 Record Player Radio Untested. This music centre is untested and comes without speakers. Here is what I know. 1.The turntable spins and changes speed and I am told it works and i dont see why it wouldnt but would need a stylus to test. 2.I have plugged in but no lights come up on the radio functions so Im not sure if it works. 3.The front buttons are quite sticky and dont pop straight out. 4.Lid is good - no cracks 5.It comes with original polystyrene padding for turntable and tone arm plus original manual. 6.Will be securely packaged and insured for delivery. Hopefully it works or is an easy fix ,otherwise lots of good spares.

Fully working, used with possible scratches and normal signs of wear and tearThe part has been removed from the fully working Beocenter. Please check out my video for more details (video taken before it disassembling)Please read the description carefully for what is included in the listing to avoid disappointmentIf you have further questions, please do not hesitate to reach out.

One MMC4 Cartridge supplied. Main photograph shows range available - see alternative listings for stock Inspected, tested and confirmed as new condition - see imagesInterchnagable with any deck that has used an MMC 1 - 5 cartridge. Eg. Beogram RX RX2 TX TX2 1800 2000 3000 3300 3500 4500 5000 5500 5005 6500 7000 8002 9000 9500 and Beocenter 2200 7007 7700MMC means Moving Micro-Cross a superior pick up technology - see below Titanium-bonded elliptical diamond, mounted on a tapered aluminium cantilever to reduce record wear and maintain optimum surface contact providing extended and more accurate sound reproduction Effective Tip Mass of mg 0,4 B&Os best ever was just 0,25 but if you can find an MMC1 let me know too! - explanation belowBuy with confidence, over 75 new/new other condition MMC cartridge/styli sold in the last 3 years all with 100% feedbackWill fit BeoGram models: RX RX2 TX TX2 1800 2000 2404 3000 3300 3500 4500 5000 5005 5500 6002 6500 7000 8002 8500 9000 9500The QUALITRONICS DIFFERENCEMatch with:Beocenter 7007 7700 2200Beogram models listed aboveUpgrade with:MMC3 with approx 20% lighter tracking force to further protect your vinylMMC2 a real jump in development with a sapphire cantilever and elliptical diamond cutMMC1 the ultimate cartridge, precious stone rigid (sapphire tube!) and a highly refined contact line diamond profile.Most of these are available in my other listings already or I have them in stock so do have a look below, if not I can source them for you in a few days. Please message me for that serviceTESTIMONIALS Courtesy of Beoworld.org MMC stands for Moving Micro-Cross; the patented moving-iron principle upon which all B&O cartridges were based. This unique system employed a cross-shaped armature which, among other advantages, guaranteed exceptional stereo separation since each channel moves on a separate axis.The job of any pickup cartridge is to transform the records physical profile (groove modulation) into corresponding electrical signals (which are then amplified or enlarged by the amplifier and turned into audible sound waves by the loudspeaker. A cartridge must perform three separate and exacting tasks if it is to do this job successfully. It must function mechanically (the movements of the stylus in the groove); it must function magnetically (using the physical movements to create changes in a magnetic field); and it must function electrically (using the changes in magnetic flux to generate an electrical current). At each stage, one type of energy is transferred into another, quite different, type. And the transfer must be perfect, with no energy lost and none added from extraneous sources. No cartridge will ever reach this ideal unless the Laws of Physics can be repealed. However, by understanding the relationships between the three transfer stages and continually applying refined engineering techniques, B&Os belief was that each stage of cartridge improvement would bring each successive cartridge closer to the ideal. Record wear and the cartridge If you take music seriously the value of your record collection is likely to be high. Many of your records are likely to be irreplaceable. You will also know that the signals pressed into your vinyl discs are very fragile indeed. The pickup cartridge can be the discs worse enemy since an ill-suited cartridge can mark a record for life in a single play. While B&O is aware that cartridge specifications are inter-related, their research shows consistently that Effective Tip Mass (ETM) is one of the major factors affecting record wear. ETM is the equivalent of the amount of inertia the groove sees in moving or accelerating the stylus tip. Consequently, the higher the ETM value, the higher the force required for a given constant acceleration. Obviously, more force results in more wear. Three elements contribute to ETM. The stylus tip (diamond) contributes with its entire weight and mass. The armature contributes between 5 - 20% of its weight and mass; the cantilever around 30%. B&O has been able to reduce ETM substantially by refining these elements and building them into an integrated unit. The result is a system which not only reduces damage to the groove walls dramatically, but also provides exceptional performance at all frequencies.MMC4 Product Specifications Description Titanium-bonded elliptical diamond, mounted on a tapered aluminium cantilever Tracking force - grams 1.2 Diamond Stylus Elliptical Cantilever tube. Tap. alum. . Effective tip mass mg 0,4 Compliance mg/mN 25 Frequency 20-20000 Hz=/-dB 2,5 Channel separation 1000>dB 22 Output mV/cm/s RMS 0,6 Cartridge weight gram 1,6 WORLDWIDE carriage may cost more OR LESS!! than the listing states (I have to enter an estimated figure) and will be charged in full as per the service chosen and destination country. Eg, air, surface, express, economy. I ALWAYS SEND WITH QUALITY PACKAGING, TRACKING AND INSURANCE. IF IN ANY DOUBT PLEASE ASK FOR A QUOTE. I NEED YOUR FULL ADDRESS FOR THISPostage/Carriage charges:You may have noticed that these has risen lately. Insurance has almost doubled and many carriers will not accept turntables, speakers or amplifiers, meaning I have to find a specialist. Im sorry that these have to be passed onto you. Qualitronics aims to recycle packaging as much as possible but it will always be top quality and usually its double-box where appropriate too.DELIVERY TO CHINA, ISRAEL, AUSTRALASIA, INDIA, RUSSIAN FEDERATION AND SOUTH AMERICA WILL BE ROUGHLY DOUBLE THE QUOTED INTERNATIONAL PRICE. TO BID IS TO ACCEPT THIS EXTRA PAYMENT. THANKS!About Qualitronics!Im running this business part-time whilst I raise my children. My daughter Issy is 5 years old, the apple of my eye, my teacher and the beneficiary of your purchases. (She says THANK YOU VERY MUCH!) Tommy is 5-months old and his dimples charm the world. I endeavour to source the HIGHEST quality electronics, mostly B&O HiFi and will have owned most of the models in question at some time in my life. This gives me a real experience of the merits to share with you. Im a time-served Sound Engineer and use my trained ear to check each audio item. Its not just sonics though, look out for the weird and wonderful... as long as its well madePRE-SALE ENQUIRIES:Im more than happy to answer any questions, offer advice and make suggestions over the phone and many customers have already found this useful.Please call the customer service line accessed by clicking the ask a question feature or opening the full information link in the business information section below. The full number is not always displayed. Often the first zero is missing. This is ebays procedure and not mine. PRODUCTION DESIGNERS AND PROPERTIES BUYERS A number of my items have now featured in TV ads, theatre and film productions and professional photography having been bought by production designers, location agents and properties buyers. These include a Beocenter 2200, Beocenter 7007 and Beovox S45 speakers among others. I recognise the tight deadlines that you have to work to and the immediacy you often have to work under. For the speediest solution I can offer, including same or next day delivery, suitability of product or advice on matching items to an era (or decade), please use the customer service line accessed by clicking the ask a question feature or opening the full information link in the business information section below. COLLECT IN PERSON:This is actively encouraged! This way, no clumsy or disgruntled delivery person can break it! Do check in advance the location of the item youre interested in. A quick call will be all thats needed to confirm the whereabouts. Whilst the business is registered in London, I also have stock stored near Maidstone, Manchester and the Midlands. I can only accept cash on collection as the payment method if visiting the premises due to the PayPal charge back scam. INSTALLATION:I am increasingly being commissioned to complete installations of the products that I sell. Depending upon your location and items purchased this can be achieved for little more than the usual shipping and insurance costs of the selected units. You receive the assurance of a properly connected system, including optimum placement design and the benefit of a full demonstration, highlighting the tips and techniques garnered from decades of experience and expertise. Recent installations have ranged from a single Beocenter being connected to the existing speakers and unit for an 89-years young-lady for a few hundred pounds to a multi-room, Beocenter, Beogram, Beovox and B&O dedicated cabinet and stands combination, with remote control, for a few thousand pounds.Please use the ask a question feature to access the pre-sales telephone number to discuss your requirements.SOURCING SERVICE:Cant find that B&O product that youve yearned for since you were a kid? Need a rare or discontinued part to repair your unit? If I dont have it in stock, then I can normally source one very quickly. I have a wide network of fellow enthusiasts, collectors, dealerships and retired B&O Engineers whom I can call upon to fulfill your needs.FEEDBACK:Your positive feedback is vital to all good sellers. It lets us know that you are happy, if not delirious, about your purchase. On very rare occasions, there may be an issue with your order, such as courier damage or simply leaving transit screws engaged. (Quite common). I can remedy any such issues to your complete satisfaction most quickly via the telephone or eBay message (without the need to open a case). Please use the contact number shown when you select the ask a question button. I realise that you are very, very busy, only one in three of my clients has found the time to leave feedback that also informs their peers of their positive experience. Indeed all of Qualitronics feedback is from buyers and not inflated by that of other sellers. Your contribution will be greatly appreciated. INTERNATIONAL PURCHASES:Please note that Qualitronics is not responsible for any additional import tariffs or customs charges levied at source or upon delivery. It is the buyers responsibility to check before purchasing for their own countrys charges. VOLTAGE:All electrical items are UK voltage (240v) and B&O UK type xxxx unless otherwise stated. I dont like to disguise the postage and packaging costs in the item price. This shipping price includes, packing materials, insurance and first class tracking that is an unfortunate necessity due to buyer fraud. It is not even the full cost, only the Royal Mail charge. Thank you for your understanding.

One MMC4 Cartridge supplied. Main photograph shows range available - see alternative listings for stock Inspected, tested and confirmed as new condition - see imagesInterchnagable with any deck that has used an MMC 1 - 5 cartridge. Eg. Beogram RX RX2 TX TX2 1800 2000 3000 3300 3500 4500 5000 5500 5005 6500 7000 8002 9000 9500 and Beocenter 2200 7007 7700MMC means Moving Micro-Cross a superior pick up technology - see below Titanium-bonded elliptical diamond, mounted on a tapered aluminium cantilever to reduce record wear and maintain optimum surface contact providing extended and more accurate sound reproduction Effective Tip Mass of mg 0,4 B&Os best ever was just 0,25 but if you can find an MMC1 let me know too! - explanation belowBuy with confidence, over 75 new/new other condition MMC cartridge/styli sold in the last 3 years all with 100% feedbackWill fit BeoGram models: RX RX2 TX TX2 1800 2000 2404 3000 3300 3500 4500 5000 5005 5500 6002 6500 7000 8002 8500 9000 9500The QUALITRONICS DIFFERENCEMatch with:Beocenter 7007 7700 2200Beogram models listed aboveUpgrade with:MMC3 with approx 20% lighter tracking force to further protect your vinylMMC2 a real jump in development with a sapphire cantilever and elliptical diamond cutMMC1 the ultimate cartridge, precious stone rigid (sapphire tube!) and a highly refined contact line diamond profile.Most of these are available in my other listings already or I have them in stock so do have a look below, if not I can source them for you in a few days. Please message me for that serviceTESTIMONIALS Courtesy of Beoworld.org MMC stands for Moving Micro-Cross; the patented moving-iron principle upon which all B&O cartridges were based. This unique system employed a cross-shaped armature which, among other advantages, guaranteed exceptional stereo separation since each channel moves on a separate axis.The job of any pickup cartridge is to transform the records physical profile (groove modulation) into corresponding electrical signals (which are then amplified or enlarged by the amplifier and turned into audible sound waves by the loudspeaker. A cartridge must perform three separate and exacting tasks if it is to do this job successfully. It must function mechanically (the movements of the stylus in the groove); it must function magnetically (using the physical movements to create changes in a magnetic field); and it must function electrically (using the changes in magnetic flux to generate an electrical current). At each stage, one type of energy is transferred into another, quite different, type. And the transfer must be perfect, with no energy lost and none added from extraneous sources. No cartridge will ever reach this ideal unless the Laws of Physics can be repealed. However, by understanding the relationships between the three transfer stages and continually applying refined engineering techniques, B&Os belief was that each stage of cartridge improvement would bring each successive cartridge closer to the ideal. Record wear and the cartridge If you take music seriously the value of your record collection is likely to be high. Many of your records are likely to be irreplaceable. You will also know that the signals pressed into your vinyl discs are very fragile indeed. The pickup cartridge can be the discs worse enemy since an ill-suited cartridge can mark a record for life in a single play. While B&O is aware that cartridge specifications are inter-related, their research shows consistently that Effective Tip Mass (ETM) is one of the major factors affecting record wear. ETM is the equivalent of the amount of inertia the groove sees in moving or accelerating the stylus tip. Consequently, the higher the ETM value, the higher the force required for a given constant acceleration. Obviously, more force results in more wear. Three elements contribute to ETM. The stylus tip (diamond) contributes with its entire weight and mass. The armature contributes between 5 - 20% of its weight and mass; the cantilever around 30%. B&O has been able to reduce ETM substantially by refining these elements and building them into an integrated unit. The result is a system which not only reduces damage to the groove walls dramatically, but also provides exceptional performance at all frequencies.MMC4 Product Specifications Description Titanium-bonded elliptical diamond, mounted on a tapered aluminium cantilever Tracking force - grams 1.2 Diamond Stylus Elliptical Cantilever tube. Tap. alum. . Effective tip mass mg 0,4 Compliance mg/mN 25 Frequency 20-20000 Hz=/-dB 2,5 Channel separation 1000>dB 22 Output mV/cm/s RMS 0,6 Cartridge weight gram 1,6 WORLDWIDE carriage may cost more OR LESS!! than the listing states (I have to enter an estimated figure) and will be charged in full as per the service chosen and destination country. Eg, air, surface, express, economy. I ALWAYS SEND WITH QUALITY PACKAGING, TRACKING AND INSURANCE. IF IN ANY DOUBT PLEASE ASK FOR A QUOTE. I NEED YOUR FULL ADDRESS FOR THISPostage/Carriage charges:You may have noticed that these has risen lately. Insurance has almost doubled and many carriers will not accept turntables, speakers or amplifiers, meaning I have to find a specialist. Im sorry that these have to be passed onto you. Qualitronics aims to recycle packaging as much as possible but it will always be top quality and usually its double-box where appropriate too.DELIVERY TO CHINA, ISRAEL, AUSTRALASIA, INDIA, RUSSIAN FEDERATION AND SOUTH AMERICA WILL BE ROUGHLY DOUBLE THE QUOTED INTERNATIONAL PRICE. TO BID IS TO ACCEPT THIS EXTRA PAYMENT. THANKS!About Qualitronics!Im running this business part-time whilst I raise my children. My daughter Issy is 5 years old, the apple of my eye, my teacher and the beneficiary of your purchases. (She says THANK YOU VERY MUCH!) Tommy is 5-months old and his dimples charm the world. I endeavour to source the HIGHEST quality electronics, mostly B&O HiFi and will have owned most of the models in question at some time in my life. This gives me a real experience of the merits to share with you. Im a time-served Sound Engineer and use my trained ear to check each audio item. Its not just sonics though, look out for the weird and wonderful... as long as its well madePRE-SALE ENQUIRIES:Im more than happy to answer any questions, offer advice and make suggestions over the phone and many customers have already found this useful.Please call the customer service line accessed by clicking the ask a question feature or opening the full information link in the business information section below. The full number is not always displayed. Often the first zero is missing. This is ebays procedure and not mine. PRODUCTION DESIGNERS AND PROPERTIES BUYERS A number of my items have now featured in TV ads, theatre and film productions and professional photography having been bought by production designers, location agents and properties buyers. These include a Beocenter 2200, Beocenter 7007 and Beovox S45 speakers among others. I recognise the tight deadlines that you have to work to and the immediacy you often have to work under. For the speediest solution I can offer, including same or next day delivery, suitability of product or advice on matching items to an era (or decade), please use the customer service line accessed by clicking the ask a question feature or opening the full information link in the business information section below. COLLECT IN PERSON:This is actively encouraged! This way, no clumsy or disgruntled delivery person can break it! Do check in advance the location of the item youre interested in. A quick call will be all thats needed to confirm the whereabouts. Whilst the business is registered in London, I also have stock stored near Maidstone, Manchester and the Midlands. I can only accept cash on collection as the payment method if visiting the premises due to the PayPal charge back scam. INSTALLATION:I am increasingly being commissioned to complete installations of the products that I sell. Depending upon your location and items purchased this can be achieved for little more than the usual shipping and insurance costs of the selected units. You receive the assurance of a properly connected system, including optimum placement design and the benefit of a full demonstration, highlighting the tips and techniques garnered from decades of experience and expertise. Recent installations have ranged from a single Beocenter being connected to the existing speakers and unit for an 89-years young-lady for a few hundred pounds to a multi-room, Beocenter, Beogram, Beovox and B&O dedicated cabinet and stands combination, with remote control, for a few thousand pounds.Please use the ask a question feature to access the pre-sales telephone number to discuss your requirements.SOURCING SERVICE:Cant find that B&O product that youve yearned for since you were a kid? Need a rare or discontinued part to repair your unit? If I dont have it in stock, then I can normally source one very quickly. I have a wide network of fellow enthusiasts, collectors, dealerships and retired B&O Engineers whom I can call upon to fulfill your needs.FEEDBACK:Your positive feedback is vital to all good sellers. It lets us know that you are happy, if not delirious, about your purchase. On very rare occasions, there may be an issue with your order, such as courier damage or simply leaving transit screws engaged. (Quite common). I can remedy any such issues to your complete satisfaction most quickly via the telephone or eBay message (without the need to open a case). Please use the contact number shown when you select the ask a question button. I realise that you are very, very busy, only one in three of my clients has found the time to leave feedback that also informs their peers of their positive experience. Indeed all of Qualitronics feedback is from buyers and not inflated by that of other sellers. Your contribution will be greatly appreciated. INTERNATIONAL PURCHASES:Please note that Qualitronics is not responsible for any additional import tariffs or customs charges levied at source or upon delivery. It is the buyers responsibility to check before purchasing for their own countrys charges. VOLTAGE:All electrical items are UK voltage (240v) and B&O UK type xxxx unless otherwise stated. I dont like to disguise the postage and packaging costs in the item price. This shipping price includes, packing materials, insurance and first class tracking that is an unfortunate necessity due to buyer fraud. It is not even the full cost, only the Royal Mail charge. Thank you for your understanding.

Original Bang & Olufsen MMC4 Cartridge/StylusUk stock ready for dispatch NOW Sounds greatChecked on a spectrum analyser, delicate, accurate and precise matching perfectly to its published specificationTracking perfectly with 1.2gram vertical tracking force MMC4 Specifications Description Titanium-bonded elliptical diamond, mounted on a tapered aluminium cantilever Tracking force - grams 1.2 Diamond Stylus Elliptical Cantilever tube. Tap. alum. . Effective tip mass mg 0,4 Compliance mg/mN 25 Frequency 20-20000 Hz=/-dB 2,5 Channel separation 1000>dB 22 Output mV/cm/s RMS 0,6 Cartridge weight gram 1,6 Courtesy of Beoworld.org MMC stands for Moving Micro-Cross; the patented moving-iron principle upon which all B&O cartridges were based. This unique system employed a cross-shaped armature which, among other advantages, guaranteed exceptional stereo separation since each channel moves on a separate axis. The job of any pickup cartridge is to transform the records physical profile (groove modulation) into corresponding electrical signals (which are then amplified or enlarged by the amplifier and turned into audible sound waves by the loudspeaker. A cartridge must perform three separate and exacting tasks if it is to do this job successfully. It must function mechanically (the movements of the stylus in the groove); it must function magnetically (using the physical movements to create changes in a magnetic field); and it must function electrically (using the changes in magnetic flux to generate an electrical current). At each stage, one type of energy is transferred into another, quite different, type. And the transfer must be perfect, with no energy lost and none added from extraneous sources.No cartridge will ever reach this ideal unless the Laws of Physics can be repealed. However, by understanding the relationships between the three transfer stages and continually applying refined engineering techniques, B&Os belief was that each stage of cartridge improvement would bring each successive cartridge closer to the ideal. Record wear and the cartridge If you take music seriously the value of your record collection is likely to be high. Many of your records are likely to be irreplaceable. You will also know that the signals pressed into your vinyl discs are very fragile indeed. The pickup cartridge can be the discs worse enemy since an ill-suited cartridge can mark a record for life in a single play. While B&O is aware that cartridge specifications are inter-related, their research shows consistently that Effective Tip Mass (ETM) is one of the major factors affecting record wear. ETM is the equivalent of the amount of inertia the groove sees in moving or accelerating the stylus tip. Consequently, the higher the ETM value, the higher the force required for a given constant acceleration. Obviously, more force results in more wear. Three elements contribute to ETM. The stylus tip (diamond) contributes with its entire weight and mass. The armature contributes between 5 - 20% of its weight and mass; the cantilever around 30%. B&O has been able to reduce ETM substantially by refining these elements and building them into an integrated unit. The result is a system which not only reduces damage to the groove walls dramatically, but also provides exceptional performance at all frequencies.

Original Bang & Olufsen MMC20E Cartridge/StylusUk stock ready for dispatch NOW Checked on a spectrum analyser, delicate, accurate and precise.Tracking perfectly.Sounds great.Stock images appearance will vary slightly.BANG & OLUFSEN MMC20E CART & STYLUS BEOGRAM 6000 4000 8000 BEOCENTER 7000 7002 3600 4600Inspected, tested - see images MMC means Moving Micro-Cross Titanium-bonded naked elliptical diamond, to reduce record wear and maintain optimum surface contact Effective Tip Mass of mg 0,4 this is what preserves your vinyl! MMC20EManufactured: 1979 - 1985Designer: Jacob JensenColours: BlackPrior to the release of MMC1 - 5 cartridges, Bang & Olufsen had the following MMC range of combined styli and cartridges: MMC cartridges were available with standard ½ mounting brackets, or with easy plug-in, lightweight connectors. These enabled you to mount MMC cartridges onto non-Bang & Olufsen arms. The cartridges plugged directly into Beogram pickup arms without additional mounting gear MMC 20 S was a stereo cartridge with a spherical framed diamond MMC 20 E was fitted with a framed elliptical diamond which has a high polish MMC 20EN had a naked elliptical diamond, mounted on a tiny tapered cantilever MMC 20 CL utilised a Contact Line naked diamond mounted on a single crystal sapphire cantilever. This shape ensures maximum groove contact. This was the most highly-specified cartridge in the MMC 20 range In 1958, Bang & Olufsen introduced the first stereo pickup cartridge ever made in Europe. This was called the SP1. Since then, many design innovations and the creative use of new materials have kept B&Os cartridges at the forefront of audio technology. By 1979 - 80, Bang & Olufsens cartridges were represented by the MMC 20 series. MMC stands for Moving Micro-Cross; the patented moving-iron principle upon which all B&O cartridges were based. This unique system employed a cross-shaped armature which, among other advantages, guaranteed exceptional stereo separation since each channel moves on a separate axis. The job of any pickup cartridge is to transform the records physical profile (groove modulation) into corresponding electrical signals (which are then amplified or enlarged by the amplifier and turned into audible sound waves by the loudspeaker. A cartridge must perform three separate and exacting tasks if it is to do this job successfully. It must function mechanically (the movements of the stylus in the groove); it must function magnetically (using the physical movements to create changes in a magnetic field); and it must function electrically (using the changes in magnetic flux to generate an electrical current). At each stage, one type of energy is transferred into another, quite different, type. And the transfer must be perfect, with no energy lost and none added from extraneous sources. No cartridge will ever reach this ideal unless the Laws of Physics can be repealed. However, by understanding the relationships between the three transfer stages and continually applying refined engineering techniques, B&Os belief was that each stage of cartridge improvement would bring each successive cartridge closer to the ideal. The MMC20 series therefore represented the closest that modern technology at that time, could possibly afford. Record wear and the cartridgeIf you take music seriously the value of your record collection is likely to be high. Many of your records are likely to be irreplaceable. You will also know that the signals pressed into your vinyl discs are very fragile indeed. The pickup cartridge can be the discs worse enemy since an ill-suited cartridge can mark a record for life in a single play. While B&O is aware that cartridge specifications are inter-related, their research shows consistently that Effective Tip Mass (ETM) is one of the major factors affecting record wear. ETM is the equivalent of the amount of inertia the groove sees in moving or accelerating the stylus tip. Consequently, the higher the ETM value, the higher the force required for a given constant acceleration. Obviously, more force results in more wear. Three elements contribute to ETM. The stylus tip (diamond) contributes with its entire weight and mass. The armature contributes between 5 - 20% of its weight and mass; the cantilever around 30%. B&O has been able to reduce ETM substantially by refining these elements and building them into an integrated unit. The result is a system which not only reduces damage to the groove walls dramatically, but also provides exceptional performance at all frequencies. Bang & Olufsen cartridges have always been highly acclaimed for their low ETM values. The ETM of the MMC 20CL is a mere 0,3mg and in the standard MMC 20 range,, only 0,5mg. MMC cartridges were manufactured by Bang & Olufsen as totally integrated units. This means that the elements were matched, balanced and sealed at the factory. Using a computer-supported testing programme,, each sealed unit was meticulously tested and its performance information automatically registered and packed with each cartridge. The information given included output voltage, relative voltage output (channel balance), channel separation and frequency response. Individually-calibrated frequency response curves were also supplied with the higher-specified MMC 20CL cartridges.

Original Bang & Olufsen MMC3 Cartridge/StylusUk stock ready for dispatch NOW Sounds greatChecked on a spectrum analyser, delicate, accurate and precise matching perfectly to its published specificationTracking perfectly with 1.2gram vertical tracking force MMC3 Product SpecificationsDescription Nude elliptical diamond mounted on a tapered aluminium cantilever Tracking force - grams 1.2Diamond Stylus Elliptical nudeCantilever tube Tap. alum. .Effective tip mass mg 0,35Compliance mg/mN 25Frequency 20-20000 Hz=/-dB 2Channel separation 1000>dB 25Output mV/cm/s RMS 0,6 Cartridge weight gram 1,6 Courtesy of Beoworld.org MMC stands for Moving Micro-Cross; the patented moving-iron principle upon which all B&O cartridges were based. This unique system employed a cross-shaped armature which, among other advantages, guaranteed exceptional stereo separation since each channel moves on a separate axis. The job of any pickup cartridge is to transform the records physical profile (groove modulation) into corresponding electrical signals (which are then amplified or enlarged by the amplifier and turned into audible sound waves by the loudspeaker. A cartridge must perform three separate and exacting tasks if it is to do this job successfully. It must function mechanically (the movements of the stylus in the groove); it must function magnetically (using the physical movements to create changes in a magnetic field); and it must function electrically (using the changes in magnetic flux to generate an electrical current). At each stage, one type of energy is transferred into another, quite different, type. And the transfer must be perfect, with no energy lost and none added from extraneous sources.No cartridge will ever reach this ideal unless the Laws of Physics can be repealed. However, by understanding the relationships between the three transfer stages and continually applying refined engineering techniques, B&Os belief was that each stage of cartridge improvement would bring each successive cartridge closer to the ideal. Record wear and the cartridge If you take music seriously the value of your record collection is likely to be high. Many of your records are likely to be irreplaceable. You will also know that the signals pressed into your vinyl discs are very fragile indeed. The pickup cartridge can be the discs worse enemy since an ill-suited cartridge can mark a record for life in a single play. While B&O is aware that cartridge specifications are inter-related, their research shows consistently that Effective Tip Mass (ETM) is one of the major factors affecting record wear. ETM is the equivalent of the amount of inertia the groove sees in moving or accelerating the stylus tip. Consequently, the higher the ETM value, the higher the force required for a given constant acceleration. Obviously, more force results in more wear. Three elements contribute to ETM. The stylus tip (diamond) contributes with its entire weight and mass. The armature contributes between 5 - 20% of its weight and mass; the cantilever around 30%. B&O has been able to reduce ETM substantially by refining these elements and building them into an integrated unit. The result is a system which not only reduces damage to the groove walls dramatically, but also provides exceptional performance at all frequencies.

Original Bang & Olufsen MMC2 Cartridge/StylusNewly refurbished Bang & Olufsen MMC2.Refurbished suspension with an original Bang & Olufsen nude multi-radial contact line diamond mounted on a sapphire tube cantilever.Tracking perfectly with 1gram vertical tracking forceMMC2 Specifications :Nude multi-radial Contact Line diamond mounted on a sapphire cantileverTracking force 1 gramNude Contact Line diamond stylusCantilever tube - sapphire Effective tip mass 0.3 mgCompliance mg/mN 30Frequency 20-20000 Hz=/-dB 1.5Channel separation 1000>dB 25Output mV/cm/s RMS 0.6Cartridge weight 1.6 grams Courtesy of Beoworld.orgMMC stands for Moving Micro-Cross; the patented moving-iron principle upon which all B&O cartridges were based. This unique system employed a cross-shaped armature which, among other advantages, guaranteed exceptional stereo separation since each channel moves on a separate axis.The job of any pickup cartridge is to transform the records physical profile (groove modulation) into corresponding electrical signals (which are then amplified or enlarged by the amplifier and turned into audible sound waves by the loudspeaker.A cartridge must perform three separate and exacting tasks if it is to do this job successfully. It must function mechanically (the movements of the stylus in the groove); it must function magnetically (using the physical movements to create changes in a magnetic field); and it must function electrically (using the changes in magnetic flux to generate an electrical current). At each stage, one type of energy is transferred into another, quite different, type. And the transfer must be perfect, with no energy lost and none added from extraneous sources.No cartridge will ever reach this ideal unless the Laws of Physics can be repealed. However, by understanding the relationships between the three transfer stages and continually applying refined engineering techniques, B&Os belief was that each stage of cartridge improvement would bring each successive cartridge closer to the ideal. Record wear and the cartridgeIf you take music seriously the value of your record collection is likely to be high. Many of your records are likely to be irreplaceable. You will also know that the signals pressed into your vinyl discs are very fragile indeed. The pickup cartridge can be the discs worse enemy since an ill-suited cartridge can mark a record for life in a single play.While B&O is aware that cartridge specifications are inter-related, their research shows consistently that Effective Tip Mass (ETM) is one of the major factors affecting record wear. ETM is the equivalent of the amount of inertia the groove sees in moving or accelerating the stylus tip. Consequently, the higher the ETM value, the higher the force required for a given constant acceleration. Obviously, more force results in more wear.Three elements contribute to ETM. The stylus tip (diamond) contributes with its entire weight and mass. The armature contributes between 5 - 20% of its weight and mass; the cantilever around 30%. B&O has been able to reduce ETM substantially by refining these elements and building them into an integrated unit. The result is a system which not only reduces damage to the groove walls dramatically, but also provides exceptional performance at all frequencies. Any questions just get in touch, Id be glad to help.

Original Bang & Olufsen MMC3 Cartridge/StylusUk stock ready for dispatch NOW Sounds greatChecked on a spectrum analyser, delicate, accurate and precise matching perfectly to its published specificationTracking perfectly with 1.2gram vertical tracking force MMC3 Product SpecificationsDescription Nude elliptical diamond mounted on a tapered aluminium cantilever Tracking force - grams 1.2Diamond Stylus Elliptical nudeCantilever tube Tap. alum. .Effective tip mass mg 0,35Compliance mg/mN 25Frequency 20-20000 Hz=/-dB 2Channel separation 1000>dB 25Output mV/cm/s RMS 0,6 Cartridge weight gram 1,6 Courtesy of Beoworld.org MMC stands for Moving Micro-Cross; the patented moving-iron principle upon which all B&O cartridges were based. This unique system employed a cross-shaped armature which, among other advantages, guaranteed exceptional stereo separation since each channel moves on a separate axis. The job of any pickup cartridge is to transform the records physical profile (groove modulation) into corresponding electrical signals (which are then amplified or enlarged by the amplifier and turned into audible sound waves by the loudspeaker. A cartridge must perform three separate and exacting tasks if it is to do this job successfully. It must function mechanically (the movements of the stylus in the groove); it must function magnetically (using the physical movements to create changes in a magnetic field); and it must function electrically (using the changes in magnetic flux to generate an electrical current). At each stage, one type of energy is transferred into another, quite different, type. And the transfer must be perfect, with no energy lost and none added from extraneous sources.No cartridge will ever reach this ideal unless the Laws of Physics can be repealed. However, by understanding the relationships between the three transfer stages and continually applying refined engineering techniques, B&Os belief was that each stage of cartridge improvement would bring each successive cartridge closer to the ideal. Record wear and the cartridge If you take music seriously the value of your record collection is likely to be high. Many of your records are likely to be irreplaceable. You will also know that the signals pressed into your vinyl discs are very fragile indeed. The pickup cartridge can be the discs worse enemy since an ill-suited cartridge can mark a record for life in a single play. While B&O is aware that cartridge specifications are inter-related, their research shows consistently that Effective Tip Mass (ETM) is one of the major factors affecting record wear. ETM is the equivalent of the amount of inertia the groove sees in moving or accelerating the stylus tip. Consequently, the higher the ETM value, the higher the force required for a given constant acceleration. Obviously, more force results in more wear. Three elements contribute to ETM. The stylus tip (diamond) contributes with its entire weight and mass. The armature contributes between 5 - 20% of its weight and mass; the cantilever around 30%. B&O has been able to reduce ETM substantially by refining these elements and building them into an integrated unit. The result is a system which not only reduces damage to the groove walls dramatically, but also provides exceptional performance at all frequencies.

Original Bang & Olufsen MMC20S Cartridge/StylusUk stock ready for dispatch NOW Checked on a spectrum analyser, delicate, accurate and precise matching perfectly to its published specificationTracking perfectly with 1.5gram vertical tracking forceTested on a Beogram 2400-2 and 4002 and sounds crisp and clear on both channelsThe model replacement for the MMC3000Matches black systems like the Beocenter 3600 - available with a cartridge in my other listings giving you the look of the original systemKeep playing your vinyl in the manner it was meant to be heardLow Effective Tip Mass protects your most precious vinyl from wear and damage Courtesy of Beoworld.orgMMC stands for Moving Micro-Cross; the patented moving-iron principle upon which all B&O cartridges were based. This unique system employed a cross-shaped armature which, among other advantages, guaranteed exceptional stereo separation since each channel moves on a separate axis.The job of any pickup cartridge is to transform the records physical profile (groove modulation) into corresponding electrical signals (which are then amplified or enlarged by the amplifier and turned into audible sound waves by the loudspeaker.A cartridge must perform three separate and exacting tasks if it is to do this job successfully. It must function mechanically (the movements of the stylus in the groove); it must function magnetically (using the physical movements to create changes in a magnetic field); and it must function electrically (using the changes in magnetic flux to generate an electrical current). At each stage, one type of energy is transferred into another, quite different, type. And the transfer must be perfect, with no energy lost and none added from extraneous sources.No cartridge will ever reach this ideal unless the Laws of Physics can be repealed. However, by understanding the relationships between the three transfer stages and continually applying refined engineering techniques, B&Os belief was that each stage of cartridge improvement would bring each successive cartridge closer to the ideal. Record wear and the cartridgeIf you take music seriously the value of your record collection is likely to be high. Many of your records are likely to be irreplaceable. You will also know that the signals pressed into your vinyl discs are very fragile indeed. The pickup cartridge can be the discs worse enemy since an ill-suited cartridge can mark a record for life in a single play.While B&O is aware that cartridge specifications are inter-related, their research shows consistently that Effective Tip Mass (ETM) is one of the major factors affecting record wear. ETM is the equivalent of the amount of inertia the groove sees in moving or accelerating the stylus tip. Consequently, the higher the ETM value, the higher the force required for a given constant acceleration. Obviously, more force results in more wear.Three elements contribute to ETM. The stylus tip (diamond) contributes with its entire weight and mass. The armature contributes between 5 - 20% of its weight and mass; the cantilever around 30%. B&O has been able to reduce ETM substantially by refining these elements and building them into an integrated unit. The result is a system which not only reduces damage to the groove walls dramatically, but also provides exceptional performance at all frequencies. This was the last of the MMC 20 range to be discontinued with cartridges being available late into the 1990s. It produced a typical warm B&O sound though lacked some of the more expensive models treble clarity. With an ETM of only 0.5mg, it was a fine cartridge and sturdy with it.The company’s range of MMC cartridges were integrated units, combining both stylus and cartridge as one slip-on unit. Matched, balanced and sealed in the factory each unit was meticulously computer tested with its results printed off and offered to the customer at time of sale. The printout included such information as output voltage, relative voltage output (channel balance), channel separation and frequency response. Manufactured: 1979 - 1985 Designer: Jacob Jensen Colours: BlackMMC 20 CartridgesPrior to the release of MMC1 - 5 cartridges, Bang & Olufsen had the following MMC range of combined styli and cartridges:MMC 20 S is a stereo cartridge with a spherical framed diamond Any questions just get in touch, Id be glad to help.

RDS Module UK delivery included • worldwide delivery available • 30-day returns • before and after sales enquiries: 07753 241443 Transceiver and left door sensor 6 module Part numbers 8001288 Board number: 8001256J Supply--> Compatibility Compatible with all two-way Beocenter 2300 and 2500 models: • Beocenter 2300, type 2611-2620 • Beosystem 2500, type 2701-2710 • Beocenter 2500, type 2601-2610 Condition In tested, working condition Refurbished with new, 105-degree capacitors. Postage The part will be very carefully packed in an ESD-safe bag, boxed, and sent by recorded post. Postage discounts are available wherever possible if purchasing multiple items. Worldwide courier delivery is available: the price shown applies to Europe only, and delivery further afield may attract a supplement. Enquire before purchase for further details.

Obseclec.com • 07753 241443 • Obscure Eclectics Parts UK delivery and 30-day returns included • worldwide delivery available • before and after sales enquiries: 07753 241443 Beocenter 9300 Amplifier Part numbers Part number: 8001640 Board number: 8001903 Modules: 10, 11, 12, 13 Includes heat sink Compatibility Beocenter 9300 only, all types Condition In tested, working condition Postage The part will be carefully packed, boxed, and sent by recorded post. Postage discounts are available wherever possible if purchasing multiple items. Worldwide courier delivery is available: the price shown applies to Europe only, and delivery further afield may attract a supplement. Enquire before purchase for further details. All items are promptly despatched, and carefully packed using a minimum of plastic packaging. See how we package parts-->

Bang & Olufsen Beocenter 9000/9500 Cassette PCB Module 20 8004528D Tape recorder module for Beocenter 9000 series models, excepting the 9300. Please check for differences with the multiple cassette mechanisms used for each model, and note that the service manual likely misprints this module as part number 8004628. Removed from a working Beocenter, and kept in warm storage. Postage The part will be carefully packed, boxed, and sent by recorded post. Worldwide postage is available.

Obseclec.com • 07753 241443 • Obscure Eclectics Parts UK delivery and 30-day returns included • worldwide delivery available • before and after sales enquiries: 07753 241443 Beocenter 9000/9500 Rectifier module Part numbers Part number: 8002731 Board number: 8002731G Module number: 62 Compatibility Becenter 9500 and 8500 Also compatible with the Beocenter 9000, but will have a spare socket position for the lack of transceiver Not compatible with Beocenter 9300 Condition The part is in tested, working condition; all four electrolytic capacitors have been replaced in the last 18 months: due to the fit of the original parts extra wires have been added to the negative terminals. Fit is good and, again, the part is working. Postage The part will be carefully packed in an ESD-safe bag, boxed, and sent by recorded post. Postage discounts are available wherever possible if purchasing multiple items. Worldwide courier delivery is available: the price shown applies to Europe only, and delivery further afield may attract a supplement. Enquire before purchase for further details. All items are promptly despatched, and carefully packed using a minimum of plastic packaging. See how we package parts-->

Obseclec.com • 07753 241443 • Obscure Eclectics Parts UK delivery and 30-day returns included • worldwide delivery available • before and after sales enquiries: 07753 241443 Beocenter 9000 Amplifier module Part numbers Board number: 8002725C Module number: 60, 61, 65, and heat sink Supply--> Compatibility Beocenter 9000 only Condition In original, tested, working condition Postage The part will be carefully packed in an ESD-safe bag, boxed, and sent by recorded post. Postage discounts are available wherever possible if purchasing multiple items. Worldwide courier delivery is available: the price shown applies to Europe only, and delivery further afield may attract a supplement. Enquire before purchase for further details. All items are promptly despatched, and carefully packed using a minimum of plastic packaging. See how we package parts-->