Bryston 2B LP Amplifier with balanced XLR inputs and gain controls has been tested and sounds great

Bryston 2B LP Amplifier with balanced XLR inputs and gain controls has been tested and sounds great

Hier steht eine exzellent Stereo-Endstufe aus dem Hause der kanadischen Edel-Manufaktur Bryston zum Verkauf. Es handelt sich um das Modell 2B. Die sehr audiophile Endstufe mit ihrem Doppel-Mono-Aufbau ist mit einer Leistung von 2 x 100W (4 Ohm) bzw. 2 x 60W (8 Ohm) angegeben. Die Endstufe war Anfang des Jahres noch in einer Fachfirma zum Werkstatt-Check und ist natürlich funktionsfähig. Optisch sind altersbedingte, leichte Gebrauchsspuren vorhanden. Es handelt sich um einen gebrauchten Artikel, welcher mit einer auf 12 Monaten beschränkten Gewährleistung auf den beschriebenen Zustand verkauft wird. Lieferumfang: Nur die Endstufe ohne weiteres Zubehör Fragen beantworten wir gern. Wir nehmen übrigens auch Geräte in Zahlung. Auf Anfrage machen wir Ihnen gerne ein entsprechendes Angebot. Bitte schauen Sie auch einmal in unseren Ebay-Shop Hifi-Dortmund. Dort finden Sie in der Regel zahlreiche interessante Angebote aus den Bereichen Hifi und High End Hifi. Vorabbesichtigung und Selbstabholung in Dortmund ist nicht nur möglich sondern wird ausdrücklich empfohlen! Ein Versand von technischen Geräten ist auch bei sorgfältiger Verpackung stets mit einem Risiko behaftet! Idealerweise sollten daher immer Geräte abgeholt werden! Sollte unbedingt ein Versand gewünscht werden, trägt der Käufer die Versandkosten. Bei teuren Geräten sind diese etwas höher aufgrund der Zusatzversicherung. Grundsätzlicher Hinweis zu unseren Angeboten! Wir sind niemals Erstbesitzer und können daher praktisch kaum eine lückenlose Historie garantieren. Auch können wir nicht garantieren, ob sich die Geräte noch im Originalzustand befinden. Wir sind da auch meistens auf die Angaben der Vorbesitzer angewiesen, die wir dann unsererseits, wenn keine Anhaltspunkte zum Zweifel erkennbar sind, unverändert weitergeben. Die Zustandsbeschreibung ist stets eine subjektive, die unsere Einschätzung wiedergibt. Das es zu unterschiedlichen Einschätzungen kommen kann ist natürlich möglich. Fast immer handelt es sich um Gebrauchtgeräte und nicht um unberührte Neuware. Bitte haben Sie Verständnis, dass wir nachträglich nicht in Preisverhandlungen eintreten werden, weil dem Käufer der Artikel nicht zusagt. Wenn das Gerät nicht den Erwartungen entsprechen sollte, kann der Käufer das Gerät im Rahmen des Rückgaberechts wieder retournieren. Auch bitten wir zu beachten, dass bei älteren Geräten die 10, 20 oder mehr Jahre alt sind stets altersbedingt Bauteile ausfallen können. Zudem können wir nie garantieren, dass die Geräte wie am ersten Tag spielen. Auch hier kann es die ein oder andere Alterserscheinung von Bauteilen geben. Weiter können bereits Bauteile in der Vergangenheit gewechselt worden sein. Wenn nicht ausdrücklich anders erwähnt, werden alle unsere Verkäufe gem §25a UStG vorgenommen, so dass keine MwSt ausgewiesen werden kann. Unsere Öffnungszeiten: Mo-Fr: 14:30 - 18:30 Uhr und Sa: 10:00 - 14:00 Uhr

Bryston 2B LP Amplifier with balanced XLR inputs and gain controls

Heute biete ich Ihnen folgendes an: Monitor PC optical cable / 1 Meter / optisches Kabel / optical Glass Fiber technischer Zustand: guter Zustand optischer Zustand: guter Zustand Falls Sie den oben aufgeführten Artikel ersteigern und diesen persönlich bei mir abholen, so können wir diesen sehr gerne gemeinsam auf den von mir angegebenen Zustand hin überprüfen. Kein Versand an Packstationen oder Paketshops !!! No shipping to USA

Used, works great. Normal rack wear for an older item like this. Very nice headphone amp.

Bryston 2B LP Stereo Power Amplifier. Condition is Used. Shipped with USPS Ground Advantage.

Hello Up for sale is a Bryston 2BLP that has been restored and upgraded. For many Brystons being restored, it means replacing the Electrolytic Capacitors. That certainly is important, but using the Best capacitors can actually improve the Amplifiers Sound. I used Nichicon KG capacitors which were the best ones that would Fit. Another important thing to do is to Tighten the Power Transistors – and I did that too. It turned out they were not loose. A Re-Capped Bryston is a wonderful thing, but there are 2 other CRITICAL things that should be done, and are normally NOT Done. And of course – I did them. One is the Bias Adjustment Pot. Everyone has trouble with this adjustment, mainly because the Open Frame ¾ Turn Trimmer after 20+ years develops issues at its set point that makes a touchy adjustment even harder to manage. Turning the adjustment is TOO MUCH, with luck, just applying Turning Force without turning is what most people do to “adjust”. Results are usually poor and not stable with time. I replaced the Open Frame ¾ Turn Trimmer with a Sealed 24Turn Trimmer. This makes it Much More Reasonable to adjust the Bias, The set screw can be used by actual Turning (not just applying pressure) to adjust bias. And its Stable. The Trimmers I chose have the adjustment screw facing up, so bias can be set with the Cover on the amplifier with a PLASTIC Adjustment tool (the bias is better set with the top on, after an hour or two of being on.) You can see the Blue Bias Trimmer that is close to the Power Transistors on the photo of the board.. I think Bryston recommends setting the Bias at 12mV, I found the amplifier sounds better at 15-17mV, but it runs hotter. My room is typically 72Deg, and if the Amplifier is sitting on a table with its heat sinks over the edge of the table – it never gets too hot. If you dont like this Bias setting, Ill set it to whatever you want. The other thing I never see on restored Brystons is that no one addresses the DC Offset at the output, and ALL 20+ Year Old Brystons suffer from that. DC Offset is bad for Speakers, and the Differential Amplifier circuit works better if it is properly balanced. The input transistors were matched at production, and there would be very little DC Offset at its output when new. But Transistors have something called Vbe drift. The Vbe is normally about 700mV, if it changes 1mV in 20 years and the amplifier has a gain of 30, there will be 30mV of DC Offset at its output. That is FAR too much. This amplifier was in the 40mV range when I got it. Good is generally considered less than 10mV. I installed a DC Balance circuit very similar to what Bryston included in their later amplifers. It is the Other Blue Trimmer near the coil (Inductor). Unfortunately the cover, or amplifier board, needs to be removed to set this 24 Turn Trimmer. But the measurement will change once the cover is on and thermally stabilizes. Getting below 10mV (What is considered “Good”) is easy, but I try to get in in the several mV range. This takes a few iterations of cover on – cover off and waiting for thermal equilibrium. Once you are below 5mV, its probably not worth the trouble getting it any better. I “Burned in” this amplifier for over 2000Hrs to eliminate any sort of “Infant Mortality” after I Re-Worked the unit. (Im from the defense industry, and 2000Hr burn-Ins are always required) This unit had the following measurements - seen in the photos before I packed it: There is a Photo included showing the Bias Voltage of both channels. There is an other photo showing the DC Offset of both channels. 2 Photos 5 minutes apart Interesting Note: Moving the amplifier location will have a slight change in measured Bias because a different location will have different air currents for cooling and this will change Bias by up to a few mV. So will the line voltage because the Power Transistors will have more voltage across them at “Hi Line” which will cause the Bias to lower a bit. I recommend (To the Extremest) resetting bias in the amplifiers final location if you worry about this sort of thing, but if you never measure anything and just use it as is – its good for another 20 years. Just like from the factory I enclosed several pictures to indicate what I did and the condition of the Chassis. I bought this unit from a recording studio in Canada. They get new units when the Bryston 20 year warranty expires. That is why some are marked with a Room Number or something similar. Another think I did to this unit was replace ALL the ceramic Caps with better caps, Mica and Polystyrene depending on its circuit function This auction is for ONE Stereo Amplifier. One other thing about this Bryston 2B. It was a Studio unit and had XLR Input connectors as inputs on the rear. I replaced them with RCA Connectors which are a much smaller Diameter. I made some Polycarbonate Mounting plates for the RCAs, you should be able to see them in a photo. XLR Cables are great for Long Runs across a studio, but is a silly concept for home audio. Especially with a Bryston 2B. XLR is a Balanced Input. The Bryston Circuit is a Single Ended Design (Input and Gnd) So There was an additional Circuit in this 2B that converted the Balanced XLR Input Signal to a Single Ended Signal – it was a fairly complex circuit that was actually AC Coupled to the 2B input. So – converting the XLR Input Connectors with RCAs allowed the removal of all that additional circuitry, so it will sound the same as a unit that was built for home use with RCAs at the factory Also, this studio unit does not have an On/Off switch, it has a Dynamic Headphone Jack in its place. So it is also a Headphone amplifier. Its better to leave it on anyway, for many years the Brystons were not furnished with an On/Off switch. You can see the Green “On Indicators” on the unit. The Studio unit had “Level Controls” where the red LED Clipping Indicators are on a home unit. I removed the Level Control Knobs (Replaced them with screws) and also removed the low quality Pot that was turned with a long shaft. The Input Level Pot is gone and replaced with a High Quality Wire. So, this Fully Refurbished and Broken In Unit is set up for Home Stereo Use. You might think this is a lot for a Bryston 2BThere are businesses that will do this for you, look in to it and see what they charge to upgrade a 2B you provide. If you have any other questions, just ask. Thanks for looking!!

Verkaufe meine wunderbare Bryston 2B. Top erhalten, lief bis gestern problemlos und hervorragend klingend in meinem System. Bryston eben. Muss aber jetzt einer Pass F5 weichen. 110V Gerät, hochwertiger Trafo , welcher sich absolut bewährt hat, ist inclusive. Top Zustand, getestet aber wie immer Privatverkauf ohne Garantie und Rücknahme und Versandrisiko beim Erwerber. Verpacke grundsätzlich aufwändig.

Vintage Bryston 2B Stereo Power Amplifier -Black- w/Box as pictured. Please read the following in full before making purchase or asking about international shipping costs. Item will be well packed to arrived to you in the condition shown. Most items ship in 1-3 business days. Please make special requests before purchase. Shipping price is for the Contiguous US only. I do not ship to Alaska, Hawaii, Puerto Rico, APO, FPO, DPO and other non-standard addresses. PO Box addresses for items over 7lbs or over 5 cubed, usually incur additional shipping expense. Seller will select the shipping service but guarantees shipping service of the same tier or faster than the one the buyer selects. INTERNATIONAL SALES: No need to ask about shipping rates to your country. I ship through EBays Global Shipping Program only. All customs and import duties for international purchases are the responsibility of the buyer. I ship to your Confirmed Paypal address only. Direct signature is required for some purchases. Returns accepted and given for item price only. There are some items I do not offer returns on. All items are strictly Buy-It-Now for the price given. I do not accept offers on items unless many items are purchased. All DVD players are NTSC Region 1 player (US and Canada). EBays Item Specifics are not always accurate. Please verify specifications with the manufacturer. All electronic devices with wall plugs are 120V 60Hz devices. Thank you.

Hello Up for sale is a Bryston 2BLP that has been restored and upgraded. For many Brystons being restored, it means replacing the Electrolytic Capacitors. That certainly is important, but using the Best capacitors can actually improve the Amplifiers Sound. I used Nichicon KG capacitors which were the best ones that would Fit. Another important thing to do is to Tighten the Power Transistors – and I did that too. It turned out they were not loose. A Re-Capped Bryston is a wonderful thing, but there are 2 other CRITICAL things that should be done, and are normally NOT Done. And of course – I did them. One is the Bias Adjustment Pot. Everyone has trouble with this adjustment, mainly because the Open Frame ¾ Turn Trimmer after 20+ years develops issues at its set point that makes a touchy adjustment even harder to manage. Turning the adjustment is TOO MUCH, with luck, just applying Turning Force without turning is what most people do to “adjust”. Results are usually poor and not stable with time. I replaced the Open Frame ¾ Turn Trimmer with a Sealed 24Turn Trimmer. This makes it Much More Reasonable to adjust the Bias, The set screw can be used by actual Turning (not just applying pressure) to adjust bias. And its Stable. The Trimmers I chose have the adjustment screw facing up, so bias can be set with the Cover on the amplifier with a PLASTIC Adjustment tool (the bias is better set with the top on, after an hour or two of being on.) You can see the Blue Bias Trimmer that is close to the Power Transistors on the photo of the board.. I think Bryston recommends setting the Bias at 12mV, I found the amplifier sounds better at 15-17mV, but it runs hotter. My room is typically 72Deg, and if the Amplifier is sitting on a table with its heat sinks over the edge of the table – it never gets too hot. If you dont like this Bias setting, Ill set it to whatever you want. The other thing I never see on restored Brystons is that no one addresses the DC Offset at the output, and ALL 20+ Year Old Brystons suffer from that. DC Offset is bad for Speakers, and the Differential Amplifier circuit works better if it is properly balanced. The input transistors were matched at production, and there would be very little DC Offset at its output when new. But Transistors have something called Vbe drift. The Vbe is normally about 700mV, if it changes 1mV in 20 years and the amplifier has a gain of 30, there will be 30mV of DC Offset at its output. That is FAR too much. This amplifier was in the 40mV range when I got it. Good is generally considered less than 10mV. I installed a DC Balance circuit very similar to what Bryston included in their later amplifers. It is the Other Blue Trimmer near the coil (Inductor). Unfortunately the cover, or amplifier board, needs to be removed to set this 24 Turn Trimmer. But the measurement will change once the cover is on and thermally stabilizes. Getting below 10mV (What is considered “Good”) is easy, but I try to get in in the several mV range. This takes a few iterations of cover on – cover off and waiting for thermal equilibrium. Once you are below 5mV, its probably not worth the trouble getting it any better. I “Burned in” this amplifier for over 2000Hrs to eliminate any sort of “Infant Mortality” after I Re-Worked the unit. (Im from the defense industry, and 2000Hr burn-Ins are always required) This unit had the following measurements - seen in the photos before I packed it: There is a Photo included showing the Bias Voltage of both channels. There is an other photo showing the DC Offset of both channels. 2 Photos 5 minutes apart Interesting Note: Moving the amplifier location will have a slight change in measured Bias because a different location will have different air currents for cooling and this will change Bias by up to a few mV. So will the line voltage because the Power Transistors will have more voltage across them at “Hi Line” which will cause the Bias to lower a bit. I recommend (To the Extremest) resetting bias in the amplifiers final location if you worry about this sort of thing, but if you never measure anything and just use it as is – its good for another 20 years. Just like from the factory I enclosed several pictures to indicate what I did and the condition of the Chassis. I bought this unit from a recording studio in Canada. They get new units when the Bryston 20 year warranty expires. That is why some are marked with a Room Number or something similar. Another think I did to this unit was replace ALL the ceramic Caps with better caps, Mica and Polystyrene depending on its circuit function This auction is for ONE Stereo Amplifier. One other thing about this Bryston 2B. It was a Studio unit and had XLR Input connectors as inputs on the rear. I replaced them with RCA Connectors which are a much smaller Diameter. I made some Polycarbonate Mounting plates for the RCAs, you should be able to see them in a photo. XLR Cables are great for Long Runs across a studio, but is a silly concept for home audio. Especially with a Bryston 2B. XLR is a Balanced Input. The Bryston Circuit is a Single Ended Design (Input and Gnd) So There was an additional Circuit in this 2B that converted the Balanced XLR Input Signal to a Single Ended Signal – it was a fairly complex circuit that was actually AC Coupled to the 2B input. So – converting the XLR Input Connectors with RCAs allowed the removal of all that additional circuitry, so it will sound the same as a unit that was built for home use with RCAs at the factory Also, this studio unit does not have an On/Off switch, it has a Dynamic Headphone Jack in its place. So it is also a Headphone amplifier. Its better to leave it on anyway, for many years the Brystons were not furnished with an On/Off switch. You can see the Green “On Indicators” on the unit. The Studio unit had “Level Controls” where the red LED Clipping Indicators are on a home unit. I removed the Level Control Knobs (Replaced them with screws) and also removed the low quality Pot that was turned with a long shaft. The Input Level Pot is gone and replaced with a High Quality Wire. So, this Fully Refurbished and Broken In Unit is set up for Home Stereo Use. You might think this is a lot for a Bryston 2BThere are businesses that will do this for you, look in to it and see what they charge to upgrade a 2B you provide. If you have any other questions, just ask. Thanks for looking!!

Very good condition. Some scratches on top. See pcs

Up for sale from a recent trade in Bryston 2B-LP Power Amplifier. Cosmetically, if you look closely under the right light, you can probably find some very light signs of wear, but overall it looks good condition. This units has been tested working properly on all functions. The item comes with Power cord, Remote control, and double box.Local pickup in cash preferred; Otherwise, Buyer will pay actual insured shipping Costs and signature required on delivery. For quick supports can be reached, 9167.79.9889. **If you have any questions, please feel free to email me**

This Bryston 2b stereo amplifier is a great addition to any home audio system. The amplifier runs on 120v 50/60hz and has a total power output of 720va. Its brand, Bryston, is well-known for its high-quality audio equipment. With this amplifier, you'll be able to enjoy your favorite songs and audio with crystal clear quality. It is perfect for anyone who is looking to upgrade their home audio system. This amplifier is in good working order and ready to be used.

Bryston 4B, 3B, 2B, 1B magazine ad. From the October 81 issue of Audio Magazine. It is an original. In good condition. Safely packed, we do include a stiff cardboard insert, the insert and ad wrapped with saran wrap and a Please Do Not Bend sticker on the envelope to help preserve the integrity of the ad.

Hello Up for sale is a Bryston 2BLP that has been restored and upgraded. For many Brystons being restored, it means replacing the Electrolytic Capacitors. That certainly is important, but using the Best capacitors can actually improve the Amplifiers Sound. I used Nichicon KG capacitors which were the best ones that would Fit. Another important thing to do is to Tighten the Power Transistors – and I did that too. It turned out they were not loose. A Re-Capped Bryston is a wonderful thing, but there are 2 other CRITICAL things that should be done, and are normally NOT Done. And of course – I did them. One is the Bias Adjustment Pot. Everyone has trouble with this adjustment, mainly because the Open Frame ¾ Turn Trimmer after 20+ years develops issues at its set point that makes a touchy adjustment even harder to manage. Turning the adjustment is TOO MUCH, with luck, just applying Turning Force without turning is what most people do to “adjust”. Results are usually poor and not stable with time. I replaced the Open Frame ¾ Turn Trimmer with a Sealed 24Turn Trimmer. This makes it Much More Reasonable to adjust the Bias, The set screw can be used by actual Turning (not just applying pressure) to adjust bias. And its Stable. The Trimmers I chose have the adjustment screw facing up, so bias can be set with the Cover on the amplifier with a PLASTIC Adjustment tool (the bias is better set with the top on, after an hour or two of being on.) You can see the Blue Bias Trimmer that is close to the Power Transistors on the photo of the board.. I think Bryston recommends setting the Bias at 12mV, I found the amplifier sounds better at 15-17mV, but it runs hotter. My room is typically 72Deg, and if the Amplifier is sitting on a table with its heat sinks over the edge of the table – it never gets too hot. If you dont like this Bias setting, Ill set it to whatever you want. The other thing I never see on restored Brystons is that no one addresses the DC Offset at the output, and ALL 20+ Year Old Brystons suffer from that. DC Offset is bad for Speakers, and the Differential Amplifier circuit works better if it is properly balanced. The input transistors were matched at production, and there would be very little DC Offset at its output when new. But Transistors have something called Vbe drift. The Vbe is normally about 700mV, if it changes 1mV in 20 years and the amplifier has a gain of 30, there will be 30mV of DC Offset at its output. That is FAR too much. This amplifier was in the 40mV range when I got it. Good is generally considered less than 10mV. I installed a DC Balance circuit very similar to what Bryston included in their later amplifers. It is the Other Blue Trimmer near the coil (Inductor). Unfortunately the cover, or amplifier board, needs to be removed to set this 24 Turn Trimmer. But the measurement will change once the cover is on and thermally stabilizes. Getting below 10mV (What is considered “Good”) is easy, but I try to get in in the several mV range. This takes a few iterations of cover on – cover off and waiting for thermal equilibrium. Once you are below 5mV, its probably not worth the trouble getting it any better. I “Burned in” this amplifier for over 2000Hrs to eliminate any sort of “Infant Mortality” after I Re-Worked the unit. (Im from the defense industry, and 2000Hr burn-Ins are always required) This unit had the following measurements - seen in the photos before I packed it: There is a Photo included showing the Bias Voltage of both channels. There is an other photo showing the DC Offset of both channels. 2 Photos 5 minutes apart Interesting Note: Moving the amplifier location will have a slight change in measured Bias because a different location will have different air currents for cooling and this will change Bias by up to a few mV. So will the line voltage because the Power Transistors will have more voltage across them at “Hi Line” which will cause the Bias to lower a bit. I recommend (To the Extremest) resetting bias in the amplifiers final location if you worry about this sort of thing, but if you never measure anything and just use it as is – its good for another 20 years. Just like from the factory I enclosed several pictures to indicate what I did and the condition of the Chassis. I bought this unit from a recording studio in Canada. They get new units when the Bryston 20 year warranty expires. That is why some are marked with a Room Number or something similar. Another think I did to this unit was replace ALL the ceramic Caps with better caps, Mica and Polystyrene depending on its circuit function This auction is for ONE Stereo Amplifier. One other thing about this Bryston 2B. It was a Studio unit and had XLR Input connectors as inputs on the rear. I replaced them with RCA Connectors which are a much smaller Diameter. I made some Polycarbonate Mounting plates for the RCAs, you should be able to see them in a photo. XLR Cables are great for Long Runs across a studio, but is a silly concept for home audio. Especially with a Bryston 2B. XLR is a Balanced Input. The Bryston Circuit is a Single Ended Design (Input and Gnd) So There was an additional Circuit in this 2B that converted the Balanced XLR Input Signal to a Single Ended Signal – it was a fairly complex circuit that was actually AC Coupled to the 2B input. So – converting the XLR Input Connectors with RCAs allowed the removal of all that additional circuitry, so it will sound the same as a unit that was built for home use with RCAs at the factory Also, this studio unit does not have an On/Off switch, it has a Dynamic Headphone Jack in its place. So it is also a Headphone amplifier. Its better to leave it on anyway, for many years the Brystons were not furnished with an On/Off switch. You can see the Green “On Indicators” on the unit. The Studio unit had “Level Controls” where the red LED Clipping Indicators are on a home unit. I removed the Level Control Knobs (Replaced them with screws) and also removed the low quality Pot that was turned with a long shaft. The Input Level Pot is gone and replaced with a High Quality Wire. So, this Fully Refurbished and Broken In Unit is set up for Home Stereo Use. You might think this is a lot for a Bryston 2BThere are businesses that will do this for you, look in to it and see what they charge to upgrade a 2B you provide. If you have any other questions, just ask. Thanks for looking!!

Description Shipping Return Policy Local Pickup About Us Item Description Item Sku: G1-B-Jul636867 AS-IS, For parts only. - Tested to power on. No further testing. *See Picture - Power cable/adapter: Not included, unless stated otherwise - May be missing internal parts we are not aware of, review all pictures in detail. - No warranty / No returns / No exchanges / No refunds. Shipping Policies When you purchase multiple items from us, were delighted to offer a 10% shipping discount on each additional item! We make it a priority to ship your order within 2-5 business days. If youre in a hurry, simply select our expedited service at checkout, and well make sure your order is shipped within just one business day. Were delighted to announce that were now offering palletizing options for larger orders. Send us an inquiry for a shipping quote to your area. We ship with FedEx, UPS, or Canada Post, depending on your location. Got a question about an item or shipping? Please feel free to send us a message directly. Were here to help! Return Policy We follow eBays return policies, so rest assured, weve got your back! Pick Up Item Locally We are located at the following address for your convenience: 1315 73 Ave SE, Calgary, AB T2H 2X1 Hours of operation: M-F 8:45-5:15pm. When you arrive, please let the receptionist know youre here to pick up your eBay purchase. About Us Welcome to Calgary Computer Wholesale! Were a local business specializing in computer hardware and accessories. We pride ourselves on providing quality products at competitive prices, with exceptional customer service to match. If you have any questions or need assistance, please dont hesitate to reach out. Were here to help you find the perfect computer hardware solutions for your needs. Thank you for choosing Calgary Computer Wholesale!

Bryston 2B Power Amplifier - 60 watts x 2 @ 8 ohms, 100 watts x 2 @ 4 ohms.

Hello Up for sale is a Bryston 2BLP that has been restored and upgraded. For many Brystons being restored, it means replacing the Electrolytic Capacitors. That certainly is important, but using the Best capacitors can actually improve the Amplifiers Sound. I used Nichicon KG capacitors which were the best ones that would Fit. Another important thing to do is to Tighten the Power Transistors – and I did that too. It turned out they were not loose. A Re-Capped Bryston is a wonderful thing, but there are 2 other CRITICAL things that should be done, and are normally NOT Done. And of course – I did them. One is the Bias Adjustment Pot. Everyone has trouble with this adjustment, mainly because the Open Frame ¾ Turn Trimmer after 20+ years develops issues at its set point that makes a touchy adjustment even harder to manage. Turning the adjustment is TOO MUCH, with luck, just applying Turning Force without turning is what most people do to “adjust”. Results are usually poor and not stable with time. I replaced the Open Frame ¾ Turn Trimmer with a Sealed 24Turn Trimmer. This makes it Much More Reasonable to adjust the Bias, The set screw can be used by actual Turning (not just applying pressure) to adjust bias. And its Stable. The Trimmers I chose have the adjustment screw facing up, so bias can be set with the Cover on the amplifier with a PLASTIC Adjustment tool (the bias is better set with the top on, after an hour or two of being on.) You can see the Blue Bias Trimmer that is close to the Power Transistors on the photo of the board.. I think Bryston recommends setting the Bias at 12mV, I found the amplifier sounds better at 15-17mV, but it runs hotter. My room is typically 72Deg, and if the Amplifier is sitting on a table with its heat sinks over the edge of the table – it never gets too hot. If you dont like this Bias setting, Ill set it to whatever you want. The other thing I never see on restored Brystons is that no one addresses the DC Offset at the output, and ALL 20+ Year Old Brystons suffer from that. DC Offset is bad for Speakers, and the Differential Amplifier circuit works better if it is properly balanced. The input transistors were matched at production, and there would be very little DC Offset at its output when new. But Transistors have something called Vbe drift. The Vbe is normally about 700mV, if it changes 1mV in 20 years and the amplifier has a gain of 30, there will be 30mV of DC Offset at its output. That is FAR too much. This amplifier was in the 40mV range when I got it. Good is generally considered less than 10mV. I installed a DC Balance circuit very similar to what Bryston included in their later amplifers. It is the Other Blue Trimmer near the coil (Inductor). Unfortunately the cover, or amplifier board, needs to be removed to set this 24 Turn Trimmer. But the measurement will change once the cover is on and thermally stabilizes. Getting below 10mV (What is considered “Good”) is easy, but I try to get in in the several mV range. This takes a few iterations of cover on – cover off and waiting for thermal equilibrium. Once you are below 5mV, its probably not worth the trouble getting it any better. I “Burned in” this amplifier for over 2000Hrs to eliminate any sort of “Infant Mortality” after I Re-Worked the unit. (Im from the defense industry, and 2000Hr burn-Ins are always required) This unit had the following measurements - seen in the photos before I packed it: There is a Photo included showing the Bias Voltage of both channels. There is an other photo showing the DC Offset of both channels. 2 Photos 5 minutes apart Interesting Note: Moving the amplifier location will have a slight change in measured Bias because a different location will have different air currents for cooling and this will change Bias by up to a few mV. So will the line voltage because the Power Transistors will have more voltage across them at “Hi Line” which will cause the Bias to lower a bit. I recommend (To the Extremest) resetting bias in the amplifiers final location if you worry about this sort of thing, but if you never measure anything and just use it as is – its good for another 20 years. Just like from the factory I enclosed several pictures to indicate what I did and the condition of the Chassis. I bought this unit from a recording studio in Canada. They get new units when the Bryston 20 year warranty expires. That is why some are marked with a Room Number or something similar. Another think I did to this unit was replace ALL the ceramic Caps with better caps, Mica and Polystyrene depending on its circuit function This auction is for ONE Stereo Amplifier. One other thing about this Bryston 2B. It was a Studio unit and had XLR Input connectors as inputs on the rear. I replaced them with RCA Connectors which are a much smaller Diameter. I made some Polycarbonate Mounting plates for the RCAs, you should be able to see them in a photo. XLR Cables are great for Long Runs across a studio, but is a silly concept for home audio. Especially with a Bryston 2B. XLR is a Balanced Input. The Bryston Circuit is a Single Ended Design (Input and Gnd) So There was an additional Circuit in this 2B that converted the Balanced XLR Input Signal to a Single Ended Signal – it was a fairly complex circuit that was actually AC Coupled to the 2B input. So – converting the XLR Input Connectors with RCAs allowed the removal of all that additional circuitry, so it will sound the same as a unit that was built for home use with RCAs at the factory Also, this studio unit does not have an On/Off switch, it has a Dynamic Headphone Jack in its place. So it is also a Headphone amplifier. Its better to leave it on anyway, for many years the Brystons were not furnished with an On/Off switch. You can see the Green “On Indicators” on the unit. The Studio unit had “Level Controls” where the red LED Clipping Indicators are on a home unit. I removed the Level Control Knobs (Replaced them with screws) and also removed the low quality Pot that was turned with a long shaft. The Input Level Pot is gone and replaced with a High Quality Wire. So, this Fully Refurbished and Broken In Unit is set up for Home Stereo Use. You might think this is a lot for a Bryston 2BThere are businesses that will do this for you, look in to it and see what they charge to upgrade a 2B you provide. If you have any other questions, just ask. Thanks for looking!!