Are there Certain Car Subwoofer Speaker Systems Made for Ipods or MP3 Players?
Yes, there are subwoofer speaker systems made for iPods and MP3 players. Like systems that feature general range iPod speakers, the subwoofer systems are made to use the full bass range available from the tiny sound devices. The iPods and MP3 players do have incredible range, but you still need the correct equipment to hear it. You will find that JVC, Harman-Kardon, Bose, Kenwood and other major sound manufacturers offer docking stations and subwoofer enhancement systems that allow you to have the full range of sound available to you. In general, the external speaker systems will actually be part of a multi-speaker room system that not only includes an extremely good mid-range system, but also a quality high-end speaker, as well as a good base response subwoofer.
For more info, see What Are the Best Car Subwoofer Speakers?