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Subs, rear fill, etc. (long) (archive)

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Posted by Preston on March 11, 1999 at 20:21:10:

In Reply to: Thanks (more) posted by Jerry on March 11, 1999 at 15:49:50:


I used to be in the business so all the BA stuff came from odd channels but I think the retail is in the $700-800 range if I recall correctly.

Subs, rear fill etc - I bought the car with the HK package thinking that I had many audio show cars and this one was going to be left stock. That idea lasted about 6 months and the HK went out the window. The HK comes with 6x9's in the rear so their is a bracket for them that I used. You can probably get this from your dealer and bolt it right onto the non-HK system as the openings are the same.

Subs - I originally had 2 JL 10W6's in the trunk in a sealed enclosure. They departed because of several reasons:

1) They weighed a lot and screwed up the cars handling. Putting extra weight on the rear axle is exactly where you don't want it in this car.

2) Even with tons of power they never really sounded all that great because of the sealed trunk of the M3. There is a huge standing wave created in the trunk and it does all sorts of funky things to the sound of the subs. I have heard of people playing with different openings into the passenger compartment, etc. but I wasn't all that interested in spending my time there.

3) The 6x9's are essentially using the trunk as an enclosure. When you start having a sub pounding in the trunk the 6x9's start moving with the sub instead of how they are supposed to be. This causes all sorts of sound issues.

So for now, I have taken all but low midbass and bass out of the 6x9's with an EQ and am using them for most of my bass production. I am missing a couple of low octaves but I don't really mind, been there done that with subs before and they aren't really my thing.

Basically my system images great, has good depth, and clarity but lacks a little in the low end. It also weighs nothing and thus doesn't change the cars characteristics at all. I am trying to go further and get rid of some more weight by dumping my 2 channel amps for 1 multichannel amp.

Hope this helps...

Regards,
Preston


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