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E89 Z4 (2009 - current)

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Old 05-03-2012, 03:14 PM
peteyyt peteyyt is offline
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Location: NY
Join Date: Dec 2011
Posts: 39
Mein Auto: BMW 550i xDrive, Z4 35i
Base Sound On '12 35i

Have they upgraded base audio on the Z's? My car has the base audio, but it sounds significantly better than our '09 Z, and I'm almost certain I can hear sound coming out of the tweeters on the door, and I'm counting 9 speakers this time around instead 6.

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Old 05-04-2012, 06:04 AM
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Andrew*Debbie Andrew*Debbie is offline
resU deretsigeR
Location: Anglesey
Join Date: Jul 2004
Posts: 6,257
Mein Auto: Leaf Tekna
In EU markets are 3 levels of audio, base, business and professional. Our 2012 UK model has the base six speaker system.

Often, US models get Business audio standard. Business audio has 10 speakers: two woofers in the kick panels, two tweeters in the doors and six midranges. The are two midranges in the doors, two in the rear quarters, one center rear and one in the dash. There is also a 250 watt amplifier in the back.
The models and equipment (standard and optional) illustrated in this post reflect my misunderstanding of vehicles supplied by BMW AG to the German market. In other EU member states, the truthyness of my posts may vary. Please ignore this post. Subject to change.

Last edited by Andrew*Debbie; 05-04-2012 at 06:06 AM.
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Old 05-10-2012, 12:40 AM
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GaryRudolph GaryRudolph is offline
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Location: Moorpark, CA
Join Date: Mar 2005
Posts: 215
Mein Auto: Z4 35is, X5 50i
Yah, the 2012 (and I think 2011) US standard sound was upgraded from Base to Business. We now have woofers in the rear, tweeters in the doors and not as high quality speakers as premium overall. We are missing the tweeter in the dash, missing tweeters in the rear and are missing the rear center channel completely.
Current: 2012 X5 xDrive50i, 2012 Z4 sDrive35is
Previous: 2011 X5 xDrive35d, 2008 M5, 2006 M Roadster, 2005 645Ci Convertible, 2002 X5 3.0i Sport
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Old 05-10-2012, 09:09 PM
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mclaren mclaren is offline
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Location: Central Florida
Join Date: Jan 2005
Posts: 3,258
Mein Auto: 2014 M5
The sound in my '11 Z4 is substantially better than my '11 335is.
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