For that kind of money, you should be saying "holy crap" or it's equivalent. When I upgraded from the AR6 to the AR6T, that's how I felt. It was a definite upgrade. Everything sounded less electronic with more space between instruments. The results may be different in other systems, but IMO, you should trust your ears and save the 2 grand for something else.
Worth to upgrade my Audience aR6-TSS to aR6-TSSOX?
I’m using Audience aR6-TSS power conditioner for a few years, in general I’m very happy with the performance. Now I can upgrade this gear to get a brand new aR6-TSSOX by paying about US$1930. However, I’ve compare it side by side at the same time, the sound quality is not that big between aR6-TSS and aR6-TSSOX. Have you compare it as well? Is it worth to pay this money upgrade to OX version? Need some input, thanks!