Rock your ride with four channels of built-in MOSFET high power from Alpine's CDM-9821 CD receiver! The Bass Engine® feature lets you choose which bass and treble frequencies get adjusted (and how wide or narrow the bass adjustment is), so you get a more effective match to your vehicle's acoustics.
CD-R and CD-RW discs are no problem for this classy deck it plays your mixes flawlessly. The sensitive MaxTune radio tuner pulls in your favorite AM and FM stations like a champ. Add an Alpine 6-disc CD changer, and your road trips will fly by. You can add extra bass to your car by connecting an amplifier/subwoofer combo to the CDM-9821's preamp outputs.