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Old 04-27-2012, 08:02 AM   #1
Multibimmer
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Coax vs. component rear speakers?

After doing a lot of research here on the subject, I'm taking the following approach toward upgrading the stereo in my daughter's 04 325i, the goal of which is to get the best improvement in sound quality for the smallest outlay of cash:

1. Stay with stock head unit
2. Replace the amp with a 4-channel aftermarket unit
3. 6-1/2" component speakers in the front
4. Sound deadening material in the doors
5. Front mid-bass drivers mounted in baffles, with a hole cut in the doors to provide the driver access to the air space inside the door

Which brings me to my question. In the write-up on the bimmerfest wiki, Jsr826 recommends replacing the rear deck speakers with coax units, and disconnecting the tweeters in the rear doors. But I've also gotten a recommendation to use component speakers in the back (thus retaining the use of tweeters int he rear doors), as opposed to coax. I'm a little uneasy about disconnecting the tweeters in the rear doors, and relying on the rear deck speakers for the high frequencies from the back part of the cabin, plus a component system would give me an excuse to take the rear panels off and installing sound deadening material in the rear doors. But on the other hand, just popping a pair of coax speakers in the rear deck is a lot simpler. Any recommendations as to the pros and cons of the two approaches? Thanks.

Last edited by Multibimmer; 04-27-2012 at 08:11 PM.
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Old 04-29-2012, 04:43 AM   #2
Arty
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The front door speakers will consume a lot of your time. Ignore the rears, leave then stock for fill in.
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Old 05-10-2012, 09:50 AM   #3
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I generally do components in the front, coax in the back. You will hear more sound as a driver. Plus, if you install subs, there will likely be some distortion in the rear anyways.
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Old 05-10-2012, 03:55 PM   #4
Multibimmer
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Thanks, it sounds like coax for the rear deck is the way to go.

"The front door speakers will consume a lot of your time"

Arty,

Truer words were never spoken! Worked on those suckers all lask weekend, and I'm still not done. But I don't have the luxury of ignoring the rear deck speakers, since they crackly like crazy at the slightest whiff of volume.
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Old 05-10-2012, 04:53 PM   #5
poopfacekillah
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Even alot of the people participating the shootouts like IASCA don't really focus on the rear speakers unless they are in a SQ class. Granted this info is a little dated as it has been 15 years since I did a competition.

That being said, a little sound deadening never hurt anyone, so if you want to take the time, I'm sure either one will sound amazing.
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Old 05-10-2012, 05:19 PM   #6
jeffb325@NavigationSolutions
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agreed, spend you time, money, and effort on doing the front as good as you can.

for the rear just leave them stock(except you said yours were toast), Coax, or dont use any at all.....
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