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

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Posted by Paul N. on October 06, 2000 at 02:51:18:

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

It seems that you have received to very different answers. I, too, am contemplating what to do. Fortunately (or maybe unfortunately), the decision was made for me by the prior owner. He cut the rear deck and had two subs in there with the two stock deck speakers. So, I will be installing 2 subs with a baffle. Now, I have researched this issue, checked the archives, and asked this question as well. It seems that the way to go is to install the subs in the deck. Again, make sure your subs will work in the open-air environment. My installer really recommends this, as he has installed several BMW's and has trophies to back up his work. He says that the BMW trunk is too well sealed that if you put a box in the trunk, the low frequency sound of a sub will not come out as it should.

I hope this helps. BTW, my installer is Traffic Jamz in Encino, CA. I think they have a web page. Good luck and good listening.

Paul - 95M3, soon to have Diamond M5 speakers and subs.

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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