These adaptors allow you to install an aftermarket amplifier to your factory head unit. These devices take the speaker level outputs from the head unit and reduce the signal to a level of which an aftermarket amplifier can use without overloading its inputs.

This device restores the dynamic range of the bass signal from the factory system which is often heavily compressed.


  • Maximum Input Level 15V rms
  • Maximum Output Level 13.5V peak
  • Frequency Response 30Hz - 120Hz: +/-1dB
  • Total Harmonic Distortion 0.003%
  • Signal to Noise Ration 130dB
  • Balanced Input Noise Rejection >60dB
  • Input Impedance 10 Kohm
  • Output Impedance 150 Ohms