Summary: I love driving my car and its all cause of this subwoofer. If your looking for a nice bass that isn't too strong but you can still feel it this is the sub you need. I have it hooked up along with a 600w BOSS Audio AMP and no problems ever. Great sub for the cost.
Summary: This sub produces a lot of kick for a little price. I'm not as much of an audiophile as some so I won't speak to the specs here. For most (basic) setups this will do the trick. I've never been disappointed with Pioneer audio (subs, AVRs, etc.). I'm running this on a dual amp in my Jeep.
Summary: I have this in a sealed box, in the hatch area of my GTI. Plenty of kick for the music I jam. ( rock, metal, punk) without hogging space. Actually ordered a size too small for my box, BUT this little guy kicks just as much as the old sub I replaced, which was 5 years old.
Summary: Very nice sound for the price I think. I don't have much to compare it to because this is my first sub purchase. I have this powered by a cheap Boss "1100 watt" (yeah, right), amp, but it performs pretty decent in spite of it.