Wow, am I amazed at what a difference the Pass Labs XA-25 makes compared to the Schiit Tyr, PS Audio M700, and others. The soundstage is more of a wrap around rather than left to right or top to bottom. The featured instruments (or voices) are distinct with depth on the stage.
The only drawback I have is the max output with my inefficient, but amazing Acoustat 1+1 speakers, is 89 db measured at 3 meters (9-10 ft). I use this measure since that is the prime listening location, although most of my critical listening is off to one side by three feet. When I scale back the PS Audio Direct Stream Mk. 1 to 92, rather than 100, the peak is 86 db, but the sound is purer. This is good for 99% of my listening. Just can't crank it for the one or two parties of the year (then only for 30-60 minutes). I can live with it.
The sweet spot is enlarged with this amp due to removing the speaker toe-in previously utilized. I found the soundstage was improved without the toe-in. This is a first. I also lowered the sub active crossover to 80 db. The XA-25 really bumped up the bass in the Acoustats. The final adjustment was a -24db to the high and a -12 db to the subs. A small but impactful difference. The SPL Crossover really helped. I am certain a JL CR-1 could provide similar results.
The XA-25 does run warm. I have elevated it two inches and provide 6+" above and on all sides. I turn it off over night, or when I am out of the house.
I thought I needed dual monoblocks for this type of soundstage. It makes me wonder what this amp would do as dual monoblocks? I believe I have my power amp for the next several years. Thanks for all your thoughts and comments.