pimpyobitch said:
Why buy an amp just turn the volume up louder.
because the amp built into a head unit cannot drive a subwoofer.
i have one audiobahn 10" sub driven by a 300W Profile CA600 amp.
it's in a 1.8 cubic foot enclosure (bigger than normal; i hand-built it to match the inside of my trunk).
thing has plenty of pump, and since i left the box sealed it stays surprisingly isolated to the inside of the car. take my word for this: if your bass is escaping to the outside of your vehicle (and subsequently pissing people around you off), that means you're getting less of the benefit of that bass.
you can get the driver i bought for around $100, the amp for around $120, and an acceptable enclosure for $50. the only other thing i'd reccomend is a capacitor, which should cost around $75.
~ dan ~
but nobody's competition comes close to the audiobahn sub.