The A-FILTER is an accessory PC board that reduces RF interference.


In Stock


  • Requires soldering onto the female end of a straight XLR cable
  • For use with balanced microphones
  • Connect the XLR containing the A-FILTER directly to the microphone
  • Reduces unwanted RF signals by ~40 dB
  • Not compatible with the AC-BALXLR, AC-BALXLR-2, and AC-BALXLR-3