Recently bought 750Li - How do I know which sound system I have?

I recently purchased a 750Li and the sound system is horrible.

From what I have read, I probably have the Logic 7 amp issues, but How do I know for sure which sound system I have?

It will clearly say LOGIC 7 on the Audio settings screen.

Thanks! If it doesn't say Logic 7, the only other option would be the HiFi sound system or were there other systems?

pretty sure if you have the indash cd changer you have the logic7.

If you go into the idrive you will go to settings where bass and treble adjustments are, at the very bottom of that page there is the eq settings and the logic 7 settings.

See if its there?

Yes, It's there! Thanks!
How many speakers are included in the logic 7 system?
Where do I go to repair the L7 amp? How much does it usually cost?

At the top of the forum there are stickies, one is on ask and L7 repair. It cost about 350.00 to get the amp fixed.

Speakers will depend on what you want to spend. BSW sells a kit for the e65 check them out they are a site sponcer.

I think there are 13 speakers total. Someone correct me if I am wrong.

13 speakers in total. 3 working speakers.