1. CLEARER SOUND: Sound operational preamplifier board uses the original imported op amp chip, compared to similar op amp sound more pure bottom noise is smaller.
2. SOUND PREAMP: Digital tone board needs to be connected to the amplifier at the sound output end, and then the amplifier will be connected to the speaker to have sound.
3. WIDE VOLTAGE INPUT: NE5532 amplifier front panel is suitable for all sound amplifier preamp source amplification. Wide voltage input, the input voltage is DC12?30V.
4. NOTE: Connect DC12?30V power supply at the power input of the amplifier board, pay attention to distinguish between positive and negative, VCC is positive.
5. PCB MATERIAL: Sound operational preamplifier board module is made of PCB material, which is and not easy to damage. Widely applicable, easy to use.

Spec:
Item Type: Sound Operational Preamplifier Board
Material:PCB
Product Model: XH A902
Chip Model: NE5532
Number Of Channels: Dual Channel
Amplification: 5X
Power Supply: DC 12-30V

How to Use:
Just finish the installation

PackageList:
5 xSound Operational Preamplifier Board
5 x Connection Cable