Product description
XH-A902 audio preamplifier board adopts imported imported op amp chip, which is purer than similar op amps and has lower noise floor; it is widely used for preamplifier amplification of all audio amplifiers; it has wide voltage Input, input voltage is DC12-30V.
Product Name: Pre-amplifier board
Number of channels: two channels
Installation hole distance: 43*23MM/aperture 3MM
The XH-A902 audio preamplifier board is a preamplifier of the audio. It cannot be directly connected to the speaker. It needs to be connected to the amplifier at the audio output.
Connect the DC 12-30V power supply to the power input terminal of the op amp board, pay attention to distinguish between positive and negative poles, and VCC is positive pole.