Depending on the power tube location, there are two types.
A types ; Power tube vertical
B types ; Power tube level
Original ON power tube; NJW0281G NJW0302G, a board. Two channels .
Size: Length 23cmx width 9cm, thickness 1.6mm, high 4cm two-channel mirror symmetry,
A class can be adjusted, you need to adjust their own.
Output power: 8R 100WX2, 4R; 200WX2
Power consumption: 30W-110W per channel
Working voltage: Board power supply DC, AC double 24v transformer
Performance parameters
Rated output power: 8R 100WX2 4R 200WX2 per channel
Quiescent current: the default 40MV- can increase the quiescent current, 100MV-200MV
Frequency response range: 28Hz ---- 66KHz
Total Harmonic Distortion: 0.1%
Input sensitivity: 0.3v ---- 0.77v ---- 0.9.5V
Input impedance: 47K
Output impedance: 4Ω ------ 16Ω
Signal to noise ratio: 98dB above