[casper5]

Hey guys..

First off all, i was looking on forum about this topic but coudnt find it.
IF somebody know, pls give me link.

I was looking what BMW e90 07/08 have sound system ( SS ) , i mean what type..

I found there are: stereo SS ( stock ) ; HiFi SS ; Premium SS and in M series Harman/Kardon

So guys ( i mention in my old post im buying e90 ) can you pls explain am i right about this type of SS? or gave you opinion

What i need to look on a car to see what SS does have couse only i can see is saying "Mp3 interface" or "CD changer"...wtf, how can i know what he have?? lol

Thanks in advance

[cdgatti]

BMW best system is individual audio followed by harmon kardon logic 7 - you can tell you have this if you have a center speaker in the dash and speakers in the rear doors. the individual audio systems have radial spokes visible in the door speaker grills and often the speakers are orangish in color. the logic 7 speakers are aluminum in color.

next best is hifi, this system is indicated by tweeters in the front door sail panels, but no dash speaker and no speakers in the rear doors.

worst is the stereo system, this system will not even have tweeters in the front doors.

[casper5]

ahaaa..

So HiFi SS and Premium SS is the same thing?

[ctuna]

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/showthread.php?t=343673
http://www.e90post.com/forums/showthread.php?t=138949
http://www.e90post.com/forums/attach...1&d=1209780605
http://www.e90post.com/forums/showthread.php?t=641323
http://bmwcoders.com/forum/3-er-8/bm...1-e92-e93-291/
http://www.e90post.com/forums/attach...1&d=1209780865
electical e90 pdf
http://www.google.com/url?sa=t&rct=j...,d.cGU&cad=rja
http://www.google.com/url?sa=t&rct=j...85464276,d.cGU
http://www.google.com/url?sa=t&rct=j...85464276,d.cGU
http://www.musicarnw.com/page-2/
http://www.e90post.com/forums/attach...4&d=1278871872

[bmw325i]

Originally Posted by casper5

ahaaa..

So HiFi SS and Premium SS is the same thing?

There are 4 systems

Base: No amp, no tweeters, no center speaker

Hifi: 6 channel amp and front tweeters but no center channel. (Easiest to upgrade)

Logic 7: 9 Channel amp. Has front tweeters, rear door speakers, and a center speaker. Fiber optic signal wires makes it more difficult to upgrade.

individual audio: M3 premium sound system similar to logic 7 with a different amp and speakers.

[casper5]

hey guys,

Thanks for replay on my post...now its more clear....

[ctuna]

Apparently they do different things in different countrys
so I would verify things. There was one guy on here that
only had one underseat speaker in your territory.
We don't get the business radio or nav here in the states.
(at least in the e9x)

[vital]

Originally Posted by bmw325i

Hifi: 6 channel amp and front tweeters but no center channel. (Easiest to upgrade)

Easiest to upgrade to aftermarket speakers/amps? Or to the next oem step - Logic 7?

[cdgatti]

hifi easiest to upgrade to aftermarket amp, which is usually what is required to make aftermarket speakers sound good. just need an amp that can accept balanced inputs. popular ones include: JL audio, alpine, ARC audio etc.

[VTECaddict]

Base audio
Option 676 - Hi-Fi
Option 677 - pre-LCI Logic7; Option 688 - LCI harmon/kardon
Option 752 - Individual High End Audio

Option 676 HiFi is easiest to upgrade to aftermarket components because it uses regular speaker preamp outputs from the head unit with wiring to the amp in the trunk.

The Logic7 and up systems use a fiber optic connection via the MOST bus to transport audio from the head unit to the amp, so upgrading to an aftermarket amp requires more work and wiring.