Boost the brilliance of your factory head unit with the Kicker ZXSUM8 Summing Unit Interface Signal Processor. It takes all the signals coming from your stereo and condenses them down into a one full-bandwidth signal that feeds to your amp. 1-year warranty.
Create the perfect sound inside your ride with the Kicker KQ30 30-Band Equalizer. With 30 bands of 12dB cut or boost spaced out over 1/3 octaves, it gives you full control to contour those tunes to your taste. 9V output. 1-year warranty.
Take your car audio system into the digital space with the Kicker Front Row Digital Signal Processor. It breaks your tunes into six distinct channels and features a familiar analog interface. Clip limiter protects against distortion. 1-year warranty.