There are three types, pay attention to the choice:
![](https://ae01.alicdn.com/kf/S9c7f9740cdda4fe8a32c9d0a3035430d5.jpg)
![](https://ae01.alicdn.com/kf/S63248c0631764b88acc0f5b6637630efE.jpg)
![](https://ae01.alicdn.com/kf/S40080e08298449eb9875ba6235119930E.jpg)
This power amplifier board is suitable for transformers with main voltage double 40-85V sub-voltage single 12-17V (about 1A)
The main voltage must be rectified before it can be connected to the power amplifier board
Adopting high-frequency transistor circuit design, the driver-level adopts the audio dedicated tube C5200, A1943 imported from Toshiba.
The input uses the original imported operational amplifier JRC5532D to act as the power output stage using 11 pairs of imported Toshiba audio dedicated tube C5200, A1943 parallel output
Technical Parameters:
Output power: 1300W
Frequency response: +0dB/-0.8dB (20Hz~20KHz)
Total harmonic distortion: <0.1% 8Ω 20Hz~20KHz
Signal to noise ratio: (20Hz--20KHz): A weighting, full power output >98dB
Instant Bear Response: 25V/μS
Damping coefficient 8Ω: 10Hz-400Hz: >200
Crosstalk between channels: 1kHz: -76 dB / 20kHz: -58dB
Input impedance: 20KΩ (Balanced)/10KΩ (Unbalanced)
Input sensitivity: 1.25V/4Ω rated power\
Note : If you choose C type, Because the weight exceeds 2kg, Cannot be sent through China Post packet,The seller chooses the right shipping method.