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OTOMON LAB 71A drive 300B/2A3 compatible PP tube amplifier monoblock X 2 Zero NFB (O.U.D.D.C)

Our target is not to chase arbitrary bench measurements for the sake of specifications alone, even though our amplifier comfortably outperforms most standard products on the market. While we possess the engineering capability to force even lower distortion figures on paper, we deliberately choose a different path.

Our true focus is the emotional energy and vitality that music conveys, which can not be calculated by any machine, rather than achieving the lower possible THD or the wider frequency response. To capture the true soul of the music, we willingly accept trade-offs in conventional technical data when it serves the ultimate listening experience


OTOMON LAB 71A drive 300B/2A3 compatible PP tube amplifier monoblock X 2 Zero NFB (O.U.D.D.C)

This is absolutely the best 300B PP 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 25W of power for one channel (with 300B). 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 -3db it is from 10Hz to 90K 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 ~ 90KHz (-1db) Flatted from 20Hz to 40Khz
Hum level: 0.2mV
THD : 5% 30W(300B) 15W(2A3)

Official Representative in Vietnam: OTOMON VIETNAM
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$4,250.00
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OTOMON LAB 71A drive 300B/2A3 compatible PP tube amplifier monoblock X 2 Zero NFB (O.U.D.D.C)

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