Well, Grant, I can't. They are new to me in that I haven't heard them all together. The units themselves are all broken in( including cables) with the exception of the preamp,which is brand new. So I can't say that the preamp sounds good in and of itself and I don't have another preamp to pop in and do a comparison to eliminate preamps, but the overall sound is much better than I previously had( which by the way consisted of a Stratos Extreme amp). It's probably a sum of its parts thing. All I know is that at this point, whatever the 2.0n preamp is contributing, it's certainly making some very nice sounding music. Thanks for pointing that out, Grant, with all due respect.