Re: Logic 7 or Hi-Fi
AFAIK, Logic 7 supposed to have 13 speakers and a surround sound function for that landscaping acoustic feel - 4 on rear shelf, 2 in rear sides, 2 mid-subs under the front seats, 4 in front doors (2 tweeters), 1 channel in the middle of the dash. The two mid-range subs under the front seats are supposedly the cause of the lack of mid-bass. Also, it sounds better in the E60 than the E92 because of roomspace. Think it is powered by a 420/430 Watt multi-channel DSP amplifier.
Some of the minus points:
Logic 7 is developed by Lexicon of Harman Kardon. Its technology was to convert standard 2-channel audio sources into a convincing 7-channel surround sound playback matrix. In laymen's terms, it is supposed to be heard like your full spectrum home theatre system no matter where you seat. You will alway hear the same frequency as compared to typical stereo system. However, in the coupe, it sounded flat (to me) front in the staging..... just my opinions. Also, speakers cannot compare to the Mark Levinson speakers in the Lexus.
The other negative point is the lack of memory settings for EQ, tone, balance. That means I have to manually adjust the low and high frequencies to levelling out the EQ from low volume to high volume.
The plus point - it is value-for-money for a OEM system. The price you are paying is a fraction of what you can get out there..........