Pioneer DEQ-9200 3-Band Car Equalizer

Now, THIS is fine tuning. The DEQ-9200 DSP audio processor is a powerful tool for customizing how you want music to sound in your vehicle. It features a DSP audio processor with Auto EQ for a huge variety of sound preferences, and Legato Link conversion for the purest sound possible. A multi-color EL display, extra-capacity battery, and detachable face security (with case provided) are additional features.