That is the problem , they do make good recordings sound good but show the flaws of bad ones- its a good problem me thinks. I hated John Mayer until I bought these speakers and was running short on well produced shit to play through them. If you high pass them and throw some subs next to them , then you can really crank them. But they require lots of room treatment because they are soooo crazy rad!!!! I use a crown amp which is fine, and I dont think 5 grand worth of bryston amps is gonna make that much of a difference.
I got a meyer cp-10 off ebay for cheap, if you just type "parametric eq" into ebay , you will be surprised at how many cool sleeper units pop up!! The real joy is the mids and the highs, get two velodyne subs, even the cheap ones and it will be magic!!