Quote:
Originally Posted by nemz
I can only go by what I've read, which you may have already seen - there's 3 level's of spec/quality. Get your VIN and run it through the online BMW decoder to see exactly what you have installed and you could also take a look under the left boot panel for an amp (black factory/silver HK).
1) Base (no door tweeters no amp)
2) Pro (with door tweeters and factory amp)
3) HK 13 speaker setup (cola can speakers that hurt my ears)
Some good threads that go into detail, I might not be 100% correct
Ideally you'd need an amp for MB Quart/Focal components, however, there are many comments that suggest replacing speakers (using direct fit speakers that follows BMW speaker impedance) vastly improve sound quality even with the base system
I've got the HK in mine (e92 2012) sounds so thrashy, logic 7 adds a bigger sound but takes away from the sound quality massively (stereo only seems better to me) all subjective I guess.
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There's also a level 4 - individual audio that sits above the hk logic 7. I have this in my e92 and is actually not bad
