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Old 08-29-2012, 03:39 PM
PSUEng PSUEng is offline
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Location: SE
Join Date: Oct 2010
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Mein Auto: 2007 X3
Originally Posted by 08MsportX3 View Post
I just bought a 08 X3 with nav and prem. sound. I would like to upgrade the factory speakers and the underseat woffers but keep the stock amp for now. What is the best route for me to go about this.
Being an old school MB Quart fan, I dropped a set of the German Maestro EFS4008 separates in the doors and it sounds phenomenal. I plan on doing the SWS sub replacements under the seats, and adding an amp. I have a thread showing pics of my install.

For the doors, you need a 4" speaker and the tweeter housing will accept the German Maestro tweeters perfectly. Depth is very shallow in the doors so don't exceed 1.6" or so for speaker depth.
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