Sign up for our newsletter. Atma-Sphere MA-1 mk2 OTL Vacuum Tube Monoblock Power Amplifiers - 6AS7 6H13C.
Atma-Sphere is THE name in high performance OTL (Output Transformer Less Amplifiers) If you havent heard what an OTL can do heres your chance. These amps have more positive reviews than you can shake a stick at. The [MA-1 consists of] a pair of SE triode class A amplifiers wired together in a differential bridge circuit.
The amps are independent; there is a separate power supply for each triode output section... Making it fundamentally different from pushpull designs in that regard. Unlike either push-pull or SE, the amp has only a single stage of gain, since the OTL nature of the beast means that we don't have to boost the signal to an extremely high voltage and then step it down again in the transformer (a hidden advantage of OTLs: greater simplicity if done right).A benefit of the design of the output section is that its output impedance is dramatically lower than typically expected. Note: This is an early version of MK2. Please double this quote for a more accurate estimate. All of the pre-owned items that we sell are thoroughly inspected and tested both on our test bench and in our listening room. Atma-Sphere MA-1 mk2 OTL Vacuum Tube Monoblock Power Amplifiers , Power Cords.
Single Loving Audiophile Owner / Non Smoker. Very Good - Minor Blemishes and Scratches, some pitting on chrome.45 lbs x 2 Boxes. Our unique products, unparalleled service and "bombproof" packaging keeps our customers coming back again and again. We look forward to earning your repeat business! _gsrx_vers_1233 GS 8.1.1 (1233). The item "Atma-Sphere MA-1 mk2 OTL Vacuum Tube Monoblock Power Amplifiers 6AS7 6H13C" is in sale since Thursday, September 17, 2020. This item is in the category "Consumer Electronics\TV, Video & Home Audio\Home Audio\Receivers & Amplifiers\Amplifiers & Preamps". The seller is "highendaudioauctions" and is located in Brooklyn, New York. This item can be shipped worldwide.