BMW Hi-Fi Options - E89

Gwest44

Senior member
 Sheffield
Conscious there are a few posts regarding the variances between the standard and loudspeaker upgrade options from BMW and also a few posts on non-standard upgrade projects.

What I was specifically after was a view from anyone who has experienced the various BMW loudspeaker options in the car's they have owned.

The first E89 I owned was a 2009 MY fitted with the 676 BMW Business Loudspeaker system and compared with the 2013 MY I currently own which is fitted with just the standard speakers I did notice a difference - I put this down to the lack of speakers behind the seats.

Now I'm currently looking at a 2010 MY that is fitted with the 677 BMW Professional Loudspeaker system and wondering if there would be a noticeable improvement over the 676 option?

Apologies for the rambling question but would appreciate the views of anyone with first hand experience.
 
The 677 is better than the 676..the primary difference being the speakers, they've moved from shite to rubbish quality..

AMP wise it has an externally accessible DSP function that is reminescent of an Amstrad amplifer.

The amp is slighly more powerful but the speakers can't exploit it.

In either version changing the mid range speakers and footwell woofers has far more impact than the actual 676 vs 677..

Picture shows 676 vs 677 vs decent mid range speakers..same applies to tweeters, woofers and sub woofers
 

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