I find that the XA30.8 sounds very very sweet but actually too much. I find it to be a loosely defined amp, somewhat muddy and lacks a lot of air and grip. The soundstage is very closed.If this is your experience with the pass xa30.8, you either got a bad sample of the amp or it’s your speakers. My pass xa30.8 into harbeth 30.2s is the exact opposite of what you describe. Pinpoint imaging, precision, tight bass, glorious soundstage. Damping factor is healthy 150 I believe.
I’m going with a push pull tube amp next, but not because of any real deficiencies with the pass. Just looking for a different sound.