Wyred 4 Sound STi amps versus PS Audio GCC amps

The layouts of these two amps are virtually identical. I know W4S had roots to PS Audio. The PS Audio GCC are now discontinued but they are some pretty good buys used compared to their price when they were new. Does anyone have any experience with an A/B comparison to them. Are the W4S siginificantly more superior to PS Audio GCC's? So far, there a thread that states it less dry and more musical..that wasn't really all that helpful
Have both.
Wyred is cleaner, more detailed, better bass and more musical. Wyred seems to have more power whe needed and has better control of the speakers. More headroom.
Both are very good amps, the Wyred is just better all around.