We can provide power transformer which use for 117V, 220V, 230V, 240V.
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Facebook Channel: Otomon Vintage FB
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【Prototype】 OTOMON LAB 2A3 drive 211 tube amplifier 20W power Zero NFB (O.U.D.D.C)
【Prototype】 OTOMON LAB 2A3 drive 211 tube amplifier 20W power Zero NFB (O.U.D.D.C)
This prototype version so price is cheaper than order made version. If you see this item was sold out, original price for ordering the same one is 4500USD
This use 396A as prestage tube and 2A3 as driver tube to drive 211 tube, generate 18W of power/channel.
This is order made product that adopt new circuit O.U.D.D.C, and the result is really amazing.
This prototype version so price is cheaper than order made version. If you see this item was sold out, original price for ordering the same one is 4500USD
This use 396A as prestage tube and 2A3 as driver tube to drive 211 tube, generate 18W of power/channel.
This is order made product that adopt new circuit O.U.D.D.C, and the result is really amazing.
No tubes are included. This amplifier is working in class A, single end mode generate 20W of power for one channel. Zero NFB !!!
With Zero NFB, the response frequency is flatted from 25Hz to 25Khz, this is impossible to all amplifier that I made before. At -1db it is from 16Hz to 35K Hz.
The output power is 20W. Almost 211 SE amplifier that I have made before has much distortion after 15W, this one get 20W of power at only 5% of distortion.
The sound as testing in our system is really good. The biggest characteristic of O.U.D.D.C is that it bring a quite difference bass sound. Deep, open sound stage and detail.
There is option that allow very little NFB (-3db ), if you dont like NFB, you can choose Zero NFB by changing the switch.
Specification (Zero NFB)
Response frequency : 16Hz ~ 35KHz (-1db) Flatted from 25Hz to 20Khz
Hum level: 0.3mV
THD : 5% 20W
With Zero NFB, the response frequency is flatted from 25Hz to 25Khz, this is impossible to all amplifier that I made before. At -1db it is from 16Hz to 35K Hz.
The output power is 20W. Almost 211 SE amplifier that I have made before has much distortion after 15W, this one get 20W of power at only 5% of distortion.
The sound as testing in our system is really good. The biggest characteristic of O.U.D.D.C is that it bring a quite difference bass sound. Deep, open sound stage and detail.
There is option that allow very little NFB (-3db ), if you dont like NFB, you can choose Zero NFB by changing the switch.
Specification (Zero NFB)
Response frequency : 16Hz ~ 35KHz (-1db) Flatted from 25Hz to 20Khz
Hum level: 0.3mV
THD : 5% 20W
$2,850.00
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