[Paul Kellerman]

Originally Posted by ctuna

Logic 7 system in a BMW is not that good.
Plenty of people think this.
At best it's the least offensive of there systems till you go for there
exotic system's
Rated power is at 10 percent distortion.
The BMW 7 amp and DSP beats the pants of it.
Mobridge makes a drop in amp/dsp that will except the Most Inputs.

The following thread shows what one guy found and gives the output
chip specs of Logic 7 aka Hk aka Top Hi Fi (down around entry 18 are chip spec pdf's)
And they use 2 ohm speakers to achieve this in some positions.
Everything except floors are 2 ohm so the 40 watts is actually 25 against 4 ohms.

https://www.e90post.com/forums/showthread.php?t=1144129



There are many speakers that will fit at a wide price range.

High End
Morels for doors
Jehnert Xe 200's for floors.

mosconi/gladen also has some good stuff.
more moderately priced speakers and high quality amp/dsp's

If you read the sticky link on upgrades there is a speaker guide link though it's
somewhat dated.

To make these sing you need that BMW7 or equivalent.

Read the first few of these links at least.

BMW stereo types
http://www.e90post.com/forums/showthread.php?t=352586
http://www.e90post.com/forums/attach...2&d=1266451970
http://www.e90post.com/forums/attach...2&d=1260829447
http://www.e90post.com/forums/attach...1&d=1209780865
http://bmwcoders.com/forum/3-er-8/bm...1-e92-e93-291/
http://technicpnp.com/menuDiagrams/d...e90_92_93.html
http://www.musicarnw.com/page-2/
http://www.e90post.com/forums/attach...3&d=1169133185
http://www.e90post.com/forums/attach...1&d=1209780605
http://www.e90post.com/forums/showthread.php?t=641323
http://www.e90post.com/forums/attach...4&d=1278871872
http://www.e90post.com/forums/showthread.php?t=343673
https://www.bimmerfest.com/threads/e...n-752.1275694/
base system wiring pre/post 3/09
https://www.google.com/url?sa=t&rct=...tDpLJPcGkw_ui_
Base System Guide
http://www.e90post.com/forums/attach...5&d=1493273253

Talk to
https://unexpectedcreations.com/
if you are interested in High End solutions and or general knowledge.

Thanks for this.

If I understand correctly, just changing the speakers to Audison will not have an impact as you're suggesting that the amp be changed to Match7?