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Old 05-15-2011, 05:58 PM
iwanna330cic iwanna330cic is offline
Location: Beachwood, OH
Join Date: Feb 2005
Posts: 909
Mein Auto: '16 428xi & '16 Z4
I had a 2007 E93 with the Logic 7 system. I now have a 2011 E91 with the HK system. There are small differences in how the audio / tone settings are adjusted through iDrive --- but it sounds virtually the same. Surround sound and very clean frequency band. No worries.

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