The XH-A902 audio preamplifier board uses the original imported op amp chip, which is purer than other similar op amps.Smaller noise floor.It is suitable for a wide range of preamplifier amplification of all audio amplifiersIt has a wide voltage input DC12~30V.
Applicable Description:
XH-A902 audio preamplifier board, which belongs to the audio preamp, directly connected to the speaker is not sound.It needs to connect the amplifier to the audio output, the power will be connected to the speaker to have a sound.It 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.
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