Stax SR-007MK2 Headphones & SRM-007T2 Energiser (Kimik) 3 month warranty Stax SR-007MK2 Headphones & SRM-007T2 Energiser (Kimik) 3 month warranty Superb STAX Electrostatic headphones complete with valve energiser. Both are in excellent condition and full working order. They come with original headphone case and our usual 3 month warranty. STAX Say…. STAX SR-007MK2 Headphones The rationale is the development of the new SR-007MK2 Earspeaker was to provide deep powerful sound previously unobtainable in Earspeakers. STAX engineers developed a unique new electrode structure. Visible through the outer case, gold plated on the outer edge this new electrode has no holes unlike conventional STAX Earspeakers and thus provides an increases diaphragm vibration area allowing for rich and powerful sound yet retaining all the delicacy STAX is famous for. Specifications: Type: Push-Pull electrostatic circular sound element, Open-Air type enclosure Frequency Response: 6 – 41,000Hz Capacitance: 94pF (including cable) Impedance: 170k ? (10kHz) Sensitivity: 100dB / 100V RMS 1 kHz Bias Voltage: 580V DC Left & Right Channel Identification: ‘L’ and ‘R’ indicated on the cable entrance point, solid line (left) and dotted line (right) on the cable Ear Pads: Genuine Lamb Leather (direct skin contact), high-quality synthetic leather (surrounding portion) Cable: Low capacity wide format, PC-OCC (Pure Crystal Ohno Continuous Casting) 2.5m/8.2ft Ambient Temperature & Humidity: 0 to 35ºC / 90% max. without condensation Weight: 12.9oz without cable / 1.1lb with cable STAX SRM-007T2 Headphone Amplifier (Kimik) The operational principle of the electrostatic condenser type is based on a system whereby plus and minus output signals are input by push-pull into two electrodes sandwiching a diaphragm with a high level of accuracy and equidistantly, resulting in the vibration of an ultra-thin membrane through the repulsive force and suction force of static electricity, which is then converted into sound. The balance method, which is considered to be the ideal for amplification, is thus extended to speakers. The electrostatic system entails input by balance, output by balance, and sound conversion by balance, and, in realizing all these features, constitutes the perfect balance system. It is the only system that makes it possible to listen to sound in the ideal manner permitted by the balance system. The new SRM-007tII is our flagship model of a driver unit intended exclusively for Earspeakers characterized by their wide range, high dynamic range and outstanding operating features with full allowance made for SACD and other new-generation high-density formats. The ultra-light polymer film, only a few microns thick, realizes unprecedented response and a high degree of resolution. Since it is driven on all sides, there is almost no partitioned vibration and there is no phase distortion. Nor is there any imbalance in the sound quality of the unit or distortion caused by the network. Electromagnetic distortion also does not occur. It opens up on the world of high sound quality that is the mark of headphone listening, a world characterized by the absence of need for large output, the high degree of freedom permitted by the use of high sound quality elements for use with small signals, and the even balance between left and right unaffected by acoustic conditions in the listening room. Features: ? We’ve taken another look at circuit constants and achieved a higher grade of reproducibility for SACD and other new-generation audio formats. ? Consists of a pure balanced amplifier in which the XLR balance input does not have to pass through a transformer, an inversion amplifier, etc. ? Makes use of a simple two-stage amplification structure based on rigorously selected low-noise FET. The load resistance makes use of non-inductive coil resistance manufactured by Dale, thus realizing straightforward properties that take advantage of the features of vacuum tubes and outstanding sound quality with a high level of clarity. ? The output stage is designed to lower impedance by using a rigorously selected high voltage dual triode (6FQ7 type) in parallel connection, which has resulted in an improvement in dynamic range especially in the high frequency. ? The heater power source for the vacuum tube makes use of a power circuit of the DC ignition type using an electrolytic condenser and a high-speed Schottky barrier diode, bringing about further improvements in the SN ratio. ? Makes use of a large-capacity power transformer and capacitor. ? Equipped with one XLR (balance) input system and two RCA (imbalance) input systems, meaning that there is a total of three input systems. ? In the case of the RCA input, switching with the earth side ensures that there is almost no interference between devices. ? Use is made of a high sound quality quadruple volume unit which makes possible XLR input as well as all kinds of line level analogue voice inputs. ? The RCA terminal “Input 1” is equipped with parallel output terminals and enables input throughout. Connection with other pre-amplifiers and recording decks, etc., is also possible. Specifications: Frequency response: DC-100 kHz / +0, -1.5 dB SR-007 or SR-404 Signature, when using 1 unit Rated input level: 200 mV / 100 V Outputs Maximum input level: 30 V RMS / at Minimum volume Amplification: 54 dB (x 500) Total harmonic distortion: 0.01% / 1 kHz, 100 V RMS Output SR-007 or SR-404 Signature, when using 1 unit Input impedance: 50 K? / XLR balance 50K?×2 Number of inputs: RCA×2, XLR×1 (balanced) Maximum output voltage: 340 V RMS / 1 kHz Standard bias voltage: DC 580 V Power voltage: 120-240V-±10%, 50 to 60 Hz Power consumption: 55V Temperature range for use: Between 0º and 35ºC, max. 90% Weight: 4.7 Kg Vacuum tubes: 6FQ7/6CG7 type x 4 Manufacturer : Stax Model : SR-007MK2 / SRM-007T2 Serial Number : SZ3-2143 / D7T-3800 Packaging : Original Accessories Included : N/A Price When New : £4000+ Shipping Shipping cost:Please contact us or check listing info. If you are outside the UK you will need a shipping quote BEFORE buying. Delivery time:48 hours Payment We accept the following payment methods: Paypal Credit/Debit Card BACS Please contact us if you have any questions. Service Established in 2003, 2ndhandhifi is the UKs largest stockist of used quality audio equipment. All items are checked before despatch and guaranteed for 30 days for ebay buyers to give you peace of mind that the item will arrive safely and work exactly as per ebay descriiptions. This means that all items described as used will be in good working order but may show minimal cosmetic marks resulting from everyday use. Any more significant cosmetic issues will be highlighted in the listing if present. We accept most payment methods but card payment to our shop is preferred. We use a reputable overnight courier service - items will be despatched next working day for delivery the next working day after that, but you are welcome to collect from our sister shop in Stockton on Tees if you prefer. Check our feedback if you have any doubts about the validity of this auction or us! We are a business so (although most times we do) we cannot always answer emails over the weekend so please try to ask Monday to Friday. Important 1. If there is no buy it now price stated, please dont ask - it is intended to be an auction which will run until its end time. 2. If you are outside the UK mainland please ask us for a shipping quote BEFORE placing a bid or clicking “Buy it Now”. If you dont ask, it means you will accept our quote. We do not cut corners on shipping, we only use reliable shipping companies, and we dont profit from the shipping prices we quote. 3. For any item where there is no original packaging the shipping costs include the cost to package the item to ensure safe delivery. Larger items may be shipped on a pallet - but this usually will be stated in the listing. 4. If you win the auction or buy the item, we expect you to pay and we will issue a non payment against you if you dont. Such auctions/listings cost us time (and therefore money). Requests to cancel will be rejected.