The CVA-1003R combines a high quality amplifier and tuner with a wide-screen, information-packed colour monitor - Its easy to operate and can even be used with the monitor down - Advanced functions include the two Bass Engine functions plus Bass Forward, as well as a BBE Processor - Team this unit with the DVD changer and youve got a great entertainment system - But now you can upgrade to Alpine - All of our Bass Engine Equipped head units have a remote control interface input that connects to an interface box so the steering wheel remote controls can be used Bass Centre Frequency Control - With a choice of eight frequencies, you can listen and compare the differences, choosing the centre frequency that results in the bass response that best matches the music and your personal preferences - Subwoofer Level Control. Minimize