Q-BAIHE DC single power supply 9v-32v low-pass filter board subwoofer front board with zoom and phase adjustment

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Product description

  • Two-channel input, subwoofer output, the output should be connected to amplifier board, can not be directly connected to the speaker
  • Phase adjustment
  • It is for professional DIY,must know how to use this kind of products
  • Power supply voltage DC9V-32V single power supply DC

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