I heard the B&W Diamond Tweeter speakers and the whole 1 hour speach was on how hot the diamonds were and took 3 days to make and what fantastic tweeters they were, and when the speakers had music played through them it was the lowest bass cello that I ever heard. I listened to them for an hour then listened to wilson sophia II's and it took less than 20 seconds for me top determine that the wilsons sounded better. I don't remember what amp was used with the B&W's but the wilsons were hooked up to a Mac275 that sounds more SS than tube to me. I guess it's still up to the listener. I will get to hear the Sashas next week.