My Mercedes project is finally complete - Home Theater Forum and Systems -

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post #1 of 3 Old 12-01-07, 02:29 PM Thread Starter
Join Date: Nov 2007
Location: St. Louis, Missouri
Posts: 64
My Mercedes project is finally complete

It took a long time- but I had fun doing it. The car came apart pretty easily- it wasn't all to much different than an American car. I see why these are more expensive than a comparable American car. They are put together soo much better. Everything is solid and insulated to the max.

Audio equipment is as follows:
Factory Becker headunit
Rockford Fosgate 3sixty.2 processor, EQ, and electronic xover (controled via bluetooth on my laptop)
JBL GTi-Single 12" sub, 7" mid, 1-1/8" tweet, and 5.25" coax in the rear doors for a little rear fill
Arc Audio FD1200.1 on the sub
A/D/S P840 on the mids and highs
Elemental Designs deadener

Other mods:
H&R 1.8" springs
Koni adjustable shocks
clear front marker lights
CL grille
flat hood emblem

It's 99% done. I still need to clean up a couple things in the trunk. There's a little glue overspray on the carpet edge of the false floor (white stuff you can see around the Arc amp) as well as add some carpet or black paint to the edge of the false floor around where the A/D/S/ amp is mounted (You can see the the wood showing in the area I am talking about).

After getting the Sonotube enclosure built- I really didn't like the way everything was looking in the trunk- so I changed plans and just built a regular enclosure. I screwed up there though. I centered the woofer on the front baffle. I should have raised the woofer 2" on the baffle to account for the fact that the false floor is 2" tall. It still looks fine though- most people probably wouldn't even notice it though.

So far I love the sound- everything I read about the GTi line was correct. The tuning is very close to being done also. I will most likely leave it as it is for another couple months until the speakers have a little more time to burn in. I think everything turned out looking quite good. My goal was good/clean sound and I didn't want to mod the vehicle in any way which couldn't be reversed. I even sourced plastic harness from Becker (the place that makes Mercedes HU's) and had them imported. That way I didn't have to cut anything on the factory harness. I just left those wires lay behind the dash and made all new harness' for myself. Although the pictures don't show it too well- the carpet I used is a 99.9% dead on match with the factory trunk carpet. Both the color and the matt is as close as can be.

The windows will be tinted in a couple weeks. The wheels have been nothing but a pain in the rear. I ordered a set of wheels that I was told by the manufacturer told me would clear the calipers- my car has the sport package wich includes larger 4 piston calipers. Turns out they were wrong- the spokes rub the calipers. It's been nothing short of a nightmare getting that straightened out. So- for the time being it's still on the stockers.
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post #2 of 3 Old 12-01-07, 04:46 PM
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Join Date: Apr 2006
Location: L.A. (Lower Alabama)
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Re: My Mercedes project is finally complete

Very nice work.

Rodny will like this one.

A sonotube in a car... first I've seen of that.

So that JBL midbass driver fit in the door okay... even though it looks pretty deep. I like it because it appears it can move pretty good with that xmax. What do you cross them over at?

I have Boston Pro midbass drivers and they will only handle down to about 60Hz comfortably and they are not as strong as I'd like for midbass.

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post #3 of 3 Old 12-01-07, 07:54 PM Thread Starter
Join Date: Nov 2007
Location: St. Louis, Missouri
Posts: 64
Re: My Mercedes project is finally complete

the driver fit very well. the stock speaker was attatched to some sort of plastic "enclosure" (for lack of a better word) so the magnet barely stuck inside the door. a combination of that added space and the mdf baffle rings- it worked out great. because of the way the stock speakers were set up- that made the door panel deep on the inside also. i ended up with about .75" clearance on the front side and magnet side.

they are crossed over around 70hz @18db. the midbass out of these things is amazing- especially considering it's roughly a 7" driver. i could cross them much lower if i wanted to.

i originally wanted to go with the sonosub for 2 reasons- 1) it was original/different (at least for car audio) and 2) it was light weight.

it sounded great, seemed to be really sturdy, and looked good (outside the car). it just didn't "fit" the install or the car. the cups or stands that i tack welded together looked pretty trick to. i saved the setup- i will most likely use it for something else. most likely when i get around to installing a sub in my girlfriend's car.
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