Hello all.

I have ressurected this thread in case any of the PG alumni have had any experience with subwoofer installs.
Mac and I have had some discussions on the install amplification which has been hugely helpful, and much appreciated. Now to the sleeves up business of making like Jim Marshall and doin' that funky chicken wood shop thang.

I plan to make a 10 litre/0.35 cubic foot subwoofer enclosure per the Polk Audio specs for my newly purchased Polk db840DVC sub woofer speaker and the end product will go somewhere into the trunk of my '98 Mitsubishi Diamante. Here are my dumb questions, (and maybe it takes a bass player to wonder about this stuff) :

(A) Does it matter in terms of sound dispersion or percieved volume which way the sub speaker box is pointed- ie. side, front facing or rearwards?

(B) Or for that matter, where in the trunk the sub is placed?

The 2 candidate positions in my car, a sedan, are:

(1) As far forward as poss. and thus close to the rear seat back (in fact potentially mounted on the rear seat back, if not the floor of the trunk), or

(2) At the rear of the trunk and to one side behind a wheel well, but up off the floor, hung on brackets. I need the floor space for my v. long bass case, among other things.

I'm asking this because, unlike the situation of passengers hearing door mounted or rear deck speakers, with a sub in an enclosure sitting in the trunk there is of course a barrier to the subs sound entering the passenger compartment and thus the listeners ears, formed by the rear deck/parcel shelf and the back of the rear seat. And these barriers being formed by a thin sheet of steel plus some upholstery, surely some muffling of sound originating in the trunk must occur. At least, you would think so.

Some sundry related Q.'s

(C) Are the frequencies subs produce sufficiently deep that these barriers don't matter much?...or is it the case that the whole trunk compartment acts as a speaker enclosure and the vibrations are felt in the passenger compartment?

(D) If the trunk is filled with luggage, is that going to muffle the subs output as heard inside the passenger compartment?

Look forward to your reponses.

Thanks, John