45/2A3 drive VT-52/300B/2A3/45 compatible SE tube amplifier monoblock x 2 * No NFB

You can change 4 type of tubes to enjoy the difference sound between them.

This is prototype version, so it used used and vintage transformer and price is cheaper than order made one. If you saw this one was sold out, price for order the same one is 3500USD.

Prestage tube is 12AY7 (can use 12AU7, 12AX7, 12AT7), driver tube is 45/2A3 compatible. Heater for all tubes are AC heater to make the sound more analog and better low frequency. Sound is very quiet and no hum at all.


This is order made product that adopt new circuit O.U.D.D.C, and the result is really amazing in low frequency.

Max output for 300B is 6W, 2A3 is 5W, VT-52 is 4.5W and 45 is 3.5W

Specification:

Response frequency : 20Hz ~ 50KHz
Hum level : 0.3mV
THD 8W / 5%

Tubes are not included.