Tony's right on the mark for this. If you want accuracy in bass response a sealed box is the way to go.

Due to the very limited amount of free space in my MR2 I have no choice but to use sealed enclosures with appropriate speakers if I want clean bass. And because I like deep/low vibe -- this translates directly to expensive speakers built for accurate motion ... and a good amount of clean power (i.e. expensive amps) to move them precisely. *sigh*

The punch is easy for me to get -- but getting decent vibe (enough to be heard/felt a block away coming from a car) out of a pair of 8" subs is going to be tough. That's what I'm shooting for, though.

I almost considered scrapping the car for something more workable ... but I just can't bring myself to do it.

-- Bleys

"If you would judge, understand." -- Seneca