Technical Parameters:
Use voltage: AC 9VX2 to AC 36VX2
No distortion Output power: max 130W / 8ΩX2 / 200W / 4Ω X2
Distortion: <0.01% (10W 8Ω)
Signal to noise ratio:> 96DB
Frequency response: 2Hz-50KHz
Gain: 34 times .
note: Products without radiator , Capacitors need their own welding . If you need to buy radiator
version , An increase of $ 25 ![](https://ae01.alicdn.com/kf/HTB17PYWqACWBuNjy0Faq6xUlXXaE.jpg)
The input level uses ON BC857 , The voltage amplifier tube uses ON A42 A92 SMD tube ,....
![](https://ae01.alicdn.com/kf/HTB1E0mUQXXXXXaAXFXXq6xXFXXXE/220353547/HTB1E0mUQXXXXXaAXFXXq6xXFXXXE.jpg?size=118780&height=561&width=750&hash=5e98ac20d0f4e126da20686026447e78)
The volume is very small, a board 2 channels only 123mmX75mm .
Power amplifier board using high voltage and high current design. Push the tube for 2SA940, 2SC2073 ,Output power tube D1047 B817 . Rated output current of 12A , Effectively guarantee its output current and power .
![](https://ae01.alicdn.com/kf/HTB1ABmGQXXXXXbIXVXXq6xXFXXXz/220353547/HTB1ABmGQXXXXXbIXVXXq6xXFXXXz.jpg?size=65513&height=467&width=750&hash=b7a5ead1b166921f0213405d042e9272)
The rectifier bridge is 25A1000V , The main filter capacitor uses 10000Uf / 50V.
![](https://ae01.alicdn.com/kf/HTB10dPcQXXXXXblXXXXq6xXFXXXl/220353547/HTB10dPcQXXXXXblXXXXq6xXFXXXl.jpg?size=93016&height=447&width=750&hash=a69fcd512ec6aea515325e46ac957e70)
notice :
1, power amplifier board must be used with the radiator to use
2, the normal work is to promote the tube A940 C2073 will be relatively hot, are normal, do not need to add another radiator.
3, the board does not protect the circuit, the output can not be short-circuited, you can add an external speaker protection circuit.
4, the board has a adjustable resistor, used to adjust the quiescent current, according to the actual situation to adjust the quiescent current, if not familiar with, it is recommended not to tune, for the adjustment of static current damage, will not be covered within the warranty.