About this item
- The pre-amplifier board, used with the power amplifier board, can achieve audio amplification and high, medium and low-pitched adjustment.
- Dual core NE5532 chip.
- Input voltage: DC12~24V
- Size: about 96*39*16mm;Mounting pitch: about 89.3*32.3mm.
- Note:When wiring, it is necessary to distinguish the positive and negative power supply, 3P audio line input.

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