Yesterday I visited Magico to hear the S7/S5 as described in this thread. Alon was kind enough to spend nearly an hour of his time playing music, and switching cables, for me. As others have mentioned, the S7 is a better speaker, as it should be for twice the price. The word I used to describe the difference is the S7 sounded ‘cleaner’. The bass was certainly more distinct and detailed over the S5, and the overall sound better. The S7 is a bit more efficient than the S5 so that could be a small factor in the difference in sound.
One point he mentioned, and I might have this slightly wrong so don’t go Internet berserk about it, is that the drivers in the S7 are so much better that they were able to eliminate some circuitry in the cross over, and this helps make the sound appear more enveloping (my word). Anyway, the point is the S7 is an all new speaker that clearly outperforms the S5.
A design issue I am not too crazy about, but is probably okay, is that the mid and tweeter module is separate from the woofer section. It is bolted and epoxied to the woofer section. In my mind that is one more thing that can work loose over time with negative sonic implications, but that is just a personal non-speaker designer feeling.
Now for the best part. I have always felt my system really starts to shine around 11 PM, as the air cools down, and the ambient noise goes very low in my house. Due to the Shunyata cabling and power, along with the solid rack and vibration control, and positioning of furniture in my living room, I have really been able to extract outstanding performance from my system. Yesterday while listening to the S5 in their outstanding listening room, I felt like I was listening to my system. It really seemed that close on songs (Patricia Barber, Holly Cole) that I also have and play. Of course, audio memory is short, and I might be wrong, but that was my impression.
Now I need to get a pair of S7s to see if they sound the same as at Magico.