Definitely going all black. I listened to both S3 MKII and S5 MKII. Initially I thought the S3 MKII were the deal because of the all graphene drivers. However, just for the heck of it I had the dealer bring in the pair of S5 MKII for comparison. With my ears, the S5MKII had much improved bass response and the pitch and definition of the bass was significantly better than the S3 MKII. The treble and midrange was identical on both speakers. Needless to say, since this is a long-term purchase I went with the S5 MKIIs given the incremental cost. S7s were out of the question due to size.
John
John - how big is your listening room? Awesome speakers.