Originally Posted by Reeses83
I think the system in the 650i is the premium sound for the 640iGC for $950. The standard system has less tweeters and a smaller amp. I think will order the GC with premium sound. Thanks for your help.
There are two sound upgrades, the Premium Sound which is what I've gotten, and the B&O which is the 3,700 option. The B&O is as much about asthetics as sound and you pay for it. I think you'll be more than happy with the Premium sound pkg, its got 16 speakers with DIRAC processing and 600watts of power (DIRAC was the system in Individual level Premium Sound option in my former M6 and it was great so I knew it was going to be nice and its even nicer in the GC)