Parameters:
5.1 Amplifier Preamp tone baord independent channel volume bass frequency division adjustment DC power supply
6 independent volume adjustments for easy positioning adjustment and adjustable bass frequency, which solves the problem of inconvenient adjustment of some pre-stage players
Product parameters:
Input power: single DC power DC15-35V, the current is about 10MA.
Input signal: 5.1 signal input 1V
Output signal: 5.1 signal output 3V
Magnification: about 3 times
Features: STB automatic standby and mute, for supporting the amplifier board, installation is very simple. The multi-channel power amplifier module is silent, which can reduce most energy consumption. There is no overall volume adjustment, which can be adjusted on the player. You can also add up the volume potentiometer.
Interface definition:
J2: signal input
J3: signal output
+ VDD: positive power supply
VSS: negative power supply
GND: signal ground
Note:
The speaker impedance is the lowest parameter, which can be adjusted according to the power supply voltage to match the power of each channel. 7.1 There are many input signal lines in the system, which is easy to be disturbed and cause noise. It is recommended to use a better signal line. The signal line in the machine should not be too long. The signal line needs to be twisted or shielded. Multiple potentiometers need to be effectively grounded.
Packing List :
1PCS