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Re: Wow...(m) (archive)

[ Follow Ups ] [ 3-series (E46) Message Board ] [ Msg. Board FAQ ]

Posted by Kenman on November 29, 1999 at 14:22:32:

In Reply to: Wow...(m) posted by phil on November 29, 1999 at 00:45:02:

Ahh, the stock head unit. It is certainly limited as far as dynamic range and it has a high noise floor. Otherwise, it sounds pretty good! I'll probably stick with it. I don't want to loose steering wheel control, and I don't want to ruin the nice look of the dash. I could make a kit to match the contour of the dash somewhat, but no matter what, an aftermarket CD player will look out of place. As long as it's output is not driven past about 90%, the distortion remains pretty low.

I used the outputs to the factory amp. This is the best solution, believe it or not, because it provides the lowest noise floor. Tapping into the low-level signal and trying to pre-amp it only adds more noise, because you are adding an additional power supply to the system. I can explain more if you'd like.

I did apply Dynamat to the sheet metal behind the seats. But not much... I am trying to keep the weight down, and the car is quite solid, so it worked out fine. It's pretty tight.

The stock front tweeters are still in place but not connected, but the stock front midranges were removed. The stock midbass drivers were replaced with the Dynaudios. In the rear, the midranges were left in place but disconnected, and the midbass drivers in the rear deck were removed.

The time delay cost about $700 including the special DC-DC power supply that had to be added.

Hope I answered most of your questions!


: Congrats! Your system is very impressive,
: it sounds like you really put in a lot of work
: (EQ rack, etc) and I hope you've been rewarded
: well...those Dynaudio's must kick ass.

: A question though: how much longer do you think
: you'll be able to live with the stock head unit?
: With a separate EQ for left/right channels,
: Image Dynamics 15's, it's obvious you're going
: for sound quality, and I'm sure now the headunit
: is an obvious weak link...are you waiting, like me,
: for a suitable trim piece to fit in a standard DIN
: sized unit? Also, did you go into the unit to
: find the source of the signal or use spkr
: level output (ouch)? And one last one...did you
: Dynamat anything? I'm sure it would make a noticeable
: (expensive) difference in the accuracy of your subs,
: of course.

: Kudos for having the balls to cut up the firewall
: in your brand new bimmer, too...I would never
: have been able to do that =)

: btw did you remove the stock speakrs, or just cut
: the wires? i've heard leaving them in leaves the
: door panels less prone to rattles.

: How much did that time-delay cost? Sounds like
: a nifty piece of kit, I don't think I'm going
: to go as far as you, though, for my car audio
: (inherently poor acoustic environment, what can
: I say?) and leave the big guns for my listening
: room at home =)

: phil

: one hearty thank-you!

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