71A PP tube amp with Amorphous OPT transformer * 117V input

Very very rare 71A PP stereo tube amplifier, using special order made Amorphous core OPT. Output 2W pure class A.To enjoy the pure sound of Amorphous core transformer, this amplifier does not adopted NFB. Sound is perfect with rich low frequency and beautiful in mid range.

71A tube is excellent tube for audio, it is same as 101D, 102D , which is very musical and beautiful sound, but it has low output power so it is very difficult to make an power amplifier with 71A as output tube. An single end 71A tube can procedure max 0.8W, this amplifier is push pull working in class A1, give output 4W , good enough for driving speaker higher than 95db.

Specification:

Response frequency: 20Hz~ 55KHz(-1db) Hum level : 0.2mV

Input volt is 100-117V, it is best if 110V.

I dont include tubes but if you want I will include all tubes as gift in case you promise no claim or return for anything happened.