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power transformer which use for 117V, 120V, 220V, 230V, 240V.
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OTOMON LAB 71A drive 2A3 PP tube amplifier 5W power All DHT tube Zero NFB (O.U.D.D.C)
Technical data is just an improve that item was tested carefully before sending to customer. While our products consistently achieve good to excellent technical figures compared to commercial alternatives, those numbers serve only to confirm that the design contains no engineering errors.
We could, in most cases, apply active techniques to make the specifications look even more impressive — but if doing so strips away originality or musical character, we will not do it. Our aim is to build equipment that sounds beautiful, not equipment that measures beautifully.
At OTOMON, music is judged by the ear and no instrument can replicate the human 's ear.
We could, in most cases, apply active techniques to make the specifications look even more impressive — but if doing so strips away originality or musical character, we will not do it. Our aim is to build equipment that sounds beautiful, not equipment that measures beautifully.
At OTOMON, music is judged by the ear and no instrument can replicate the human 's ear.
OTOMON LAB 71A drive 2A3 PP tube amplifier 5W power All DHT tube Zero NFB (O.U.D.D.C)
DHT is Direct heat tube, which brings a very special sound, but in the oposite site, it is very easy to get hum so make an amp with all DHT tube is very very difficult.
This amplifier use 26 tube as prestage tube, 71A is secondary tube driver 2A3 tube in output stage.
The hum level is a little higher than another 2A3 tube amp that I have made, but it is acceptable level and a high recommend to one who want to try a difference in sound of 2A3 tube.
This is product adopted new circuit O.U.D.D.C, and the result is as usual, really amazing.
DHT is Direct heat tube, which brings a very special sound, but in the oposite site, it is very easy to get hum so make an amp with all DHT tube is very very difficult.
This amplifier use 26 tube as prestage tube, 71A is secondary tube driver 2A3 tube in output stage.
The hum level is a little higher than another 2A3 tube amp that I have made, but it is acceptable level and a high recommend to one who want to try a difference in sound of 2A3 tube.
This is product adopted new circuit O.U.D.D.C, and the result is as usual, really amazing.
With Zero NFB, the response frequency is flatted from 28Hz to 30Khz, this is impossible to all amplifier that I made before. At -1db it is from 20Hz to 40K Hz.
The sound as testing in our system is really special, very musical and sweet. The biggest characteristic of O.U.D.D.C is that it bring a quite difference bass sound. Deep, open sound stage and detail.
Specification (Zero NFB)
Response frequency : 20Hz ~ 40KHz (-1db)
Hum level: 0.8mV
THD : 5% 5W
The sound as testing in our system is really special, very musical and sweet. The biggest characteristic of O.U.D.D.C is that it bring a quite difference bass sound. Deep, open sound stage and detail.
Specification (Zero NFB)
Response frequency : 20Hz ~ 40KHz (-1db)
Hum level: 0.8mV
THD : 5% 5W
$2,850.00
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