I purchased efficient speakers so I had flexibility with my amp purchase.
I have the XA25 running through a Khozmo preamp into the Crites speakers, which are Klipsch clones. The amp is very pleasant and neutral. Very good bass. Build quality superb. I will not be selling it. The 30.8 will be warmer but a even beefier amp, it puts out over 100 Class AB. It also weighs 90 pounds which influenced my decision. If some talks you out of Pass there is Ayre, Luxman, Sugden and Coda which all have generous Class A output.