Pre-Amplifier Module Digital Audio Front Amplifier Board Preamplifier 5 Times Rate Wide Voltage

The XH-A902 audio preamplifier board uses the original imported op-amp chip, which is more than similar OP-amps. Less noise bottom. It is suitable for all audio amplifiers amplified by a wide range of preamplifiers, with a wide voltage input DC12~30V.XH-A902 audio preamplifier board, it is an audio preamplifier, directly connected to the speaker does not sound.It needs to connect the amplifier to the audio output and the power supply to the speaker to have sound.It connects the 12-30V power supply to the power input of the op amp board, paying attention to distinguish the positive and negative terminals, and VCC is the positive terminal.Parameters:1. : Preamplifier board2. Product model :XH-A9023. Power supply voltage: 12-30V4. Magnify: 5x5. Chip model :NE55326. Number of channels :2CH7. Working temperature :-20℃~ 85℃8. Working humidity: 5%-95%RHPacking list: Audio Amplifier *1 (excluding other exhibits)Notes:Due to manual measurement, please allow an error of 2-3 cm.The actual color may be slightly different from the picture due to different lighting.Chip protection, overvoltage undervoltage overheat DC short circuit detection.

• The XH-A902 audio preamplifier board uses the original imported op-amp chip, which is more than similar OP-amps. Less noise bottom. It is suitable for all audio amplifiers amplified by a wide range of preamplifiers, with a wide voltage input DC12~30V.
• XH-A902 audio preamplifier board, it is an audio preamplifier, directly connected to the speaker does not sound.
• It needs to connect the amplifier to the audio output and the power supply to the speaker to have sound.
• It connects the 12-30V power supply to the power input of the op amp board, paying attention to distinguish the positive and negative terminals, and VCC is the positive terminal.
• In the event of an overload, the device reports the fault to the processor, thus avoiding damage to itself.