I have had the S6 for almost 2 years and am very happy with them. But I just found out that there is an RS6. It's been out for about a year and I didn't even know. For anyone that might have heard both speakers, is their a significant difference worth upgrading? I am just psyching myself out now. I talked to the dealer from where I bought the S6 and he says the difference is not huge. He said if I want to upgrade better to step up to the RS8 but that is out of my price range. Any comments would be appreciated. Thanks, -- Sanjay