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Old 09-28-2002, 06:26 PM   #1
dt32569
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Stereo DIY question



Ok got a question for those who have replaced your stock and or HK stereo in the 330Coupe. Presently I have the following setup - stock speakers up front all run from 2 channels of a JL audio 300.4 amp - with MB quart Xovers on them. My rear speakers are JL stealthboxes off the other channels of that amp. I have a Audiocontrol EQ on the front.
THe system sounds good, BUT I do notice bottoming on my stock woofers. And I can notice a slight gap in the bass region (between the subs and woofer) so.....think about it....
I have not opened up this car like the ones in my past. IS it a major pain to replace the stock speakers?
I was thinking of replacing the tweets with my Quart of some JL tweets and then replacing the woofers with JL or quart - leavin the mids since the system is set up and Xd over. Id replace the speakers then re-eq it.
So......for yall who have done it - how much of a pain and if it is a pain is it worth it. Will JL 6.5s FIT in the door? (Or will a lit bit of dremeling work?)
Thanks.
(Reason I said think about it is lots will IMMEDIATELY say REPLACE THEM!!!! :-) )
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Old 09-28-2002, 10:56 PM   #2
Ron@Streeteffectz
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6.5's will fit, but you need to do some modding to the door. The speakers mount to the door panel itself, so you will probably need to make some brackets. The reason you are experiencing bottoming out is from the MB crossover....the stock speakers won't play the full range of those crossovers.
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Old 09-28-2002, 11:50 PM   #3
dt32569
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Stereo DIY

Thanks for the reply Ron. Do the brackets just need to be simple ones so the screw holes can line up? I could prolly get some of those ABS plastic ones and mod that. Any probs with depth into the door - if you have installed JL or MB Qs.
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Old 09-29-2002, 12:15 AM   #4
Ron@Streeteffectz
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Yup, that's all the brackets are for. I haven't dont quarts in the bmw, but have done JL, focal, and alpine. On all of them I needed to cut into the door slightly for the magnet to fit so the door panel sat flush at the bottom again.
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Old 09-30-2002, 09:40 AM   #5
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Must depend on which JL you go w/ mine don't even hit the foam padding on the door, but I went w/ the 6" perfect fit.
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Old 09-30-2002, 11:55 AM   #6
Pmmeke
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hans acs a friend has the boston speakers

Realy nice and no modding.

the RM6 6,5 inch rear from boston
http://www.bostonacoustics.com/Series.asp?CategoryID=2

and front rc62O
http://www.bostonacoustics.com/Series.asp?CategoryID=2


fits all holes and the tweeters fit the mirror space. Cross overs included : around 24O dollar a set

or if your realy serious with your money
http://www.bostonacoustics.com/Produ...=4&SeriesID=20
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Old 09-30-2002, 04:22 PM   #7
dt32569
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CLS1000 question...

Nice job on fastening the mid bass - I saw your post on the other threat with your tweets - how did you secure them in position? I guess hot glue would work!! ;-)

You arent going to use the factory mid? I am gonna give it a shot - it is 8 ohms, but with a -3db cut on my 13 band Eq I should be able to get it about as loud as the tweets and mid bass then tweak it with my analyzer (I use my home C101 Series 3 audiocontrol one with a white noise test disc in the car - it WORKS!)
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Old 09-30-2002, 05:23 PM   #8
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thanks. Honestly, I never tried them in the front. I have my components and stealth's amped w/ 2 small xtants, and are strictly using the rears as fill. I have them set at 200HZ, 24Db per octive sloap, and for a rear fill speaker, running off the deck power, they work quite well. I don't like high end coming from the rear, so that's what I did. I might someday try using the front's as sort of a 3-way setup, I just have never gotten around to trying it. As for the tweets, no hot glue, in extreme temps the hot glue will let loose. What I used? Small dabs of JB weld. Just enough to hold them in place, but will be very easy to remove as well in the future, and it will NEVER let lose under temp. changes either. I live in western PA, so I'm like 0-95 degress swing, I need all the help I can get.... The factory mids are very efficient, running off my alpine piece, they scream, I had to tone them down quite a bit.......
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Old 09-30-2002, 05:49 PM   #9
dt32569
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cool

JB weld - DAMN good idea!!
What are you running besides amps and speakers - Alpine head unit and what else?
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Old 09-30-2002, 08:38 PM   #10
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it's pretty basic. Alpine CDA-7878, XM radio, JL 6" components up front, Stealths in the rear, 2 Xtant 202m amps & of course the factory mids running off the deck. I set it up pretty quick on an RTA & did the time alignment thing as well. It sounds decent. This is my daily driver so I wasn't about to sacrifice any trunk space you know? I also have a Ford Festiva w/ an Alpine monitor w/ DVD, 4 18W6's, 2 pairs of 5.25" XR components, 2 Xtant X1001 amps & a 604X. That's my boom car.
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Old 09-30-2002, 08:51 PM   #11
dt32569
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Tiem alignment

Sounds good - what kind of time alignment did you do with your RTA?
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