What with the cold weather minimizing your cruising, now's the perfect time to be amping up your car's sound system, and there's no better way to make your presence known than with some powerful subwoofers. It doesn't take much in the way of pocket cash or vehicle space to get those deep bass notes emanating from your ride. You provide the trunk space -- or where ever -- and you can have low-range tones that will reach to the end of the block. And then some.
Take these Kicker Solo-Baric Subwoofers, for example. 750 watts RMS and 1500 watts of peak power through a pair of 12" diameter speakers that have only 2 ohms of impedance. 20-100 Hz response range from the titanium impregnated cones sporting a rolled outer edge. Vented, solid wood enclosure with a tough carbon fiber front; the back is fully braced to minimize unwanted vibrations, the baskets are cast aluminum, and the terminals are, of course, spring-loaded. Nice.
If you're a bigger (diameter) is better fan, than these 12" subwoofers from MTX Thunder may be just right for you and your car. The 5500 model consists of mica-filled, aluminum-finished, stitched polypropylene cones with rubber surrounds and 1 3/4" voice coils. 300 watts RMS and MTX's proprietary Spider Plateau Venting; 4 ohm impedance. These guys, for your best sound, should be mounted in a sealed enclosure; but you already knew that.
Lastly, if you're on the hunt for maximum RMS watts of power, check out these JL Audio Slot-Ported Subwoofers -- a big-time 1000 watts of RMS sound, and 2 ohms of impedance from this pair of 10" diameter speakers.The speakers are chamber-coupled and feature easy to connect side-mounts for the terminals. Build a support for them and you're good to go.
Subwoofers -- for when you want the other guys to hear you, before they see you.