In reply to:
I read the review from Sound&Vision and they tested output on the Sherbourn at 253Watts 8ohm and 381Watts 4ohm before clipping (this was one channel driven).
That's actually excellent. Do you have corresponding third-party measurements for the Anthem? Despite my comments in this particular thread, I usually take the manufacturer's numbers for no more than "informational" purposes anyway.
I am not saying that the linear increase in power with decreasing load impedance is a "must" by any means. But as you know, some expensive brands, such as Krell, certainly achieve it, sometimes even down to 2 ohms. Since you are paying a good chunk of $$$ for a separate power amp (even though these may be "entry-level" separates), you are entitled to examine every bit of performance ratings.
