I expected tfabris to provide me at least a half a dozen links by now ;-) Tony are you out there?

Yeah, I just never built my own subwoofer box before, and I've never built a bandpass box. All I've done is purchased a pre-built box from Crutchfield and screwed a subwoofer into it. Since I was just relying on the charts in their catalog, I really don't know anything about calculating box volume (I just know it's important to get it right).

I will say that I had a friend who built a rather nifty custom subwoofer box for the trunk of his Renault. It had (as Doug suggested elsewhere) channeled ports which ran into the passenger cabin under the back seat. It was pretty awesome. The problem was that it was made of particle board, so when he got a water leak in his trunk, all his work turned into mush.

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Tony Fabris