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OTOMON LAB 71A drive 300B PP tube amplifier 30W power monoblock X 2 Zero NFB (O.U.D.D.C)

OTOMON LAB 71A drive 300B PP tube amplifier 30W power monoblock X 2 Zero NFB (O.U.D.D.C)

This is absolutely the best 300B amplifier that I have ever made, using O.U.D.D.C schematic

This is order made product that adopt new circuit O.U.D.D.C, and the result is as usual, really amazing.
No tubes are included. This amplifier is working in class A, double pushpull mode generate 30W of power for one channel. Zero NFB !!!

With Zero NFB, the response frequency is flatted from 20Hz to 40Khz, this is impossible to all amplifier that I made before. At -1db it is from 10Hz to 80K Hz.

The output power is 30W. Almost 300B PP tube amp generate 15-18W per channel.

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.

Specification (Zero NFB)
Response frequency : 10Hz ~ 80KHz (-1db) Flatted from 20Hz to 40Khz
Hum level: 0.2mV
THD : 5% 30W

  • Special order made
  • NEW
$4,250.00
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OTOMON LAB 71A drive 300B PP tube amplifier 30W power monoblock X 2 Zero NFB (O.U.D.D.C)

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