A20 architecture is inspirit the USA WE 91 with one level amplification circuit, with. Hinese 6J8P for voltage amplification. It can be replaced by 6SJ7 or many other same tube, and the power tube can use direct. Y with KT88 tube tube without any modification. With all tubes option: is with 2 x KT88 power tube and 2x preamp tube and a rectifier tube.1 x 5Z3PAT, high level rectifier tube. Voltage tubes: 2 x 6J8PEquivalent 6SJ7. Power tubes: 2 x PSVANE or Shuguang KT88.
Power transformer : 0.35mm/60MM 11460. Output transformers: 0.35mm 8650.
Output power: 18Wx2(Ultra- linear connection). Output Impedance: 4ohms - 8ohms. Total Harmonic Distortion: = 1% (1kHz).Input Impedance: 100K O (3 input). Size (W × D × H): 360mm × 300mm × 185mm.
Net weight: 16.5 kg net. Power and output transformers use Booyu's best transformers. Gold plate connection for all connections. Double CLC filter inductors for rectifier tube. Double chassis design 2.4mm, very high resistant up to 70kg loading.
The transformers steel are all imported from japon Z11 0.35mm. Hinese brand of transformer, then it' s why the BOYUU. S amplifier transformers are better than others and its tube amps can give a better sound. This item is in the category "Consumer Electronics\TV, Video & Home Audio\Home Audio\Receivers & Amplifiers\Amplifiers & Preamps".The seller is "aoshida-hifi-us" and is located in this country: CN. This item can be shipped worldwide.