The issue with any power amp geared more for the pro market, is that noise levels, with high power and fans going on and off, S/N ratios don't really matter. Of course, with an HT application, one wants an amp as quiet as possible. Now, with all that in mind, I happened to see a couple of recent reviews done by two audiophile individuals who normally wouldn't review this kind of product and with no mention of S/N ratios were quite impressed with the XLS sound and "bang for the buck". So, there you are.

The problem is, nowadays, getting your hands on one of them.