@jjss49 I really would like to think this is true, but what I read disputes it. Owners of expensive gear swear by it check the Phoenix reviews here on Audiogon.
@lordmelton Here is the comparison with the SOtM tX below.
Check what Audiobacon wrote about the Phoenix:
"Having used both battery and the Paul Hynes SR4 on the SOtM tX-USBultra, I realized that its tone is more grey and neutral relative to the Phoenix. That’s probably the biggest difference between the two. The Phoenix has more “blood and tissue” and I found it to be more tonally true. Both handle timbre well.
The Phoenix also has more grit and texture while the tX-USBultra is fuller and smoother. While listening to a few tracks by Kieza, I felt the Phoenix had more realistic decay where certain harmonies lingered for the right amount of time. This actually brought me closer to when I saw her performing live. But the tX sounded more molded and solid. And thus gave more of the impression of a physical presence. Silhouettes are seemed tighter and more “rounded off” with the tX-USBultra.
Another difference is depth. The Innuos has more of it. The SOtM stays more in front and sounds more “glued together.” Whereas the Innuos plucks out the elements better. It handles the fabric of the music with more delicacy and nuance. It’s also the more open sounding of the two. The SOtM is more “collected” and laid back. Lastly, the Innuos has more impactful, deeper, and refined bass. The SOtM has more aggregated mass that is punchy but not as granular.
If you prefer a liquid, more solid, and more neutral sound, the SOtM tX-USBultra is probably the better pick. If you prefer something richer, more open, and warmer, go with the Phoenix. Although I appreciate the qualities of both, I prefer the more natural tone of the Phoenix."