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Re: last question on subwoofer install rec's (archive)

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Posted by Aus on October 06, 2000 at 00:25:19:

In Reply to: last question on subwoofer install rec's posted by mrone on October 05, 2000 at 21:32:35:

I pulled the rears and had a baffle across the rear which the subz were mounted on. The subz run infinite baffle (free-air). Just make sure the MTX won't fall apart in free air. Most hard-core car audio guys don't want the rear fill as long as the front stage is well designed.
You will need more power. I'd use that amp for the front stage and get a class D amp for the subz; consider Memphis, Crossfire, Cadence for bang for the buck class D amps.

back to the tired old question regarding the best way to install a subwoofer in your trunk and still have it get into the interior. i have two (2) 10" MTX's and a rockford fosgate (50W x 2; 100w bridged) that I recently purchased. the amp is used as i want the most cost-efficient bang for the buck. i currently have a blaupunkt las vegas head unit running i believe 25w rms and upgraded 5 1/2" up front, stock 4T's in the back -- definitely better than stock.

now, everyone knows about how incredibly sealed bmw trunks are. and without a ski pass/foldable armest in the rear seats, i have no ports whatsoever. so, the dilemma i am having is this:

1) keep the 4T speakers in the back (keep the 'fill'), install the sub box in the very sealed trunk and just hope for the best sound. if I do this, i can parallel the subs; or

2) do a trick install job creating ports in my rear deck, most probably by removing the rear 4T's and using the ports (or some other costly measure which might affect the rear's torsional rigidity-- hype?).

now, it seems that the true hardcore, audiophiles believe that removing the 'fill' seriously downgrades the sound. i believe that my mid's and tweeters up front are sufficient, but not precisely sure what removing the 4T's will do.

will i get good sound removing the rear speakers and replacing them with the sub's? would this be the same sound (or better) as the JL Stealthbox? or should i leave the rear speakers in? keep in mind that i don't want to spend big bucks on this upgrade.

any help appreciated. thanks in advance.

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