...get a bigger sub

I don't think that's the answer. Tee's problem is that the subwoofer is mounted in a separate compartment, sealed off from the passenger compartment, with no common air pathway.

All he can do with his sub is vibrate the bulkhead separating the passenger compartment from the trunk or boot, so that in turn the bulkhead will try and vibrate the air in the passenger compartment to produce sound. As this bulkhead is no doubt sound-deadening by design, it is not surprising that the performance of his subwoofer is disappointing. Even if he put a bigger sub and a bigger amp back there and got the decibels he wants, the frequencies produced by this second-generation sound would be greatly shifted towards the low end -- all tonality would be lost and all he would hear would be thump-thump-thump from the drums.

Dominic is right -- the only solution I can see that is likely to work is to open an air path from the trunk/boot to the passenger compartment, or else relocate the subwoofer into the passenger compartment.

tanstaafl.


"There Ain't No Such Thing As A Free Lunch"
_________________________
"There Ain't No Such Thing As A Free Lunch"