OTOMON Laboratory　(音門ラボ) / 71A drive 2A3 SE tube amplifier 5W power Zero NFB (O.U.D.D.C)

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71A drive 2A3 SE tube amplifier 5W power Zero NFB (O.U.D.D.C)

You can order input voltage 117V, 220V, 230V, 240V.

I dont open information about schematic, parts, transformer using in my amplifier. My brand name is the guarantee to what I do with my production !!!

For all item on eBay, I will discount 10% or more of listing price, contact for more detail.

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71A drive 2A3 SE tube amplifier 5W power Zero NFB (O.U.D.D.C)

This product is special order made item, if you want the same item, please contact me for order

Manufacturer:: OTOMON Lab

Audio amplifier » Tube amplifiers Audio amplifier » Special Order Made Original Order Made Otomon Lab

This is 2A3 tube amp that adopted circuit O.U.D.D.C, and it is exactly the best 2A3 SE tube amp that I made.

Original price for this amp is 3000usd plus shipping fee, tubes are not included. All parts are new ones. This amplifier is working in class A, single end mode generate 5W of power for one channel. Zero NFB !!!

This one was made to compare with all 2A3 SE tube amp that I have ever made. The result that was calculated via Technical Tester and Hearing via speaker improved that the O.U.D.D.C (Detail here > http://soundgate.net/product/MTQ1MA...highend is bringing the best sound ever for the amp.

With Zero NFB, the response frequency is flatted from 25Hz to 40Khz, this is impossible to all amplifier that I made before. At -1db it is from 16Hz to 50K Hz.

The output power is 5W. Almost VT62 SE amplifier that I have made before has much distortion after 3W, this one get 5W 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 (-5db ), if you dont like NFB, you can choose Zero NFB by changing the switch.

Specification (Zero NFB)
Response frequency : 16Hz ~ 50KHz (-1db) Flatted from 25Hz to 40Khz
Hum level: 0.3mV
THD : 5% 5W

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