The best experience I had with Pass was still too lean.
At least with the dot 8 series I've owned (X250.8 and now XA30.8), my experiences with Pass are the opposite to this finding. I actually would have guessed folks who don't like the Pass sound would find them too warm, thick, lacking in resolution, slow, etc...
The 'meat on the bones' sound I hear from those two Pass amps plus the wicked 3D soundstage are the two areas that make them my favorites so far over other amps I've owned recently (Modwright, Simaudio, Bryston, Benchmark; with speakers Magico S1s and now Spendor D9s). I owned a Parasound A23 years ago so can't really compare it...
I've never heard the XA25 though, but would love to try one with my D9s if it only provided a balanced input :)