I encountered no glitches or surprises while testing the Sunfire Theater Grand Receiver 3. Power output was consistently among the highest I have measured from a multichannel receiver, and its 165 watts (22.2 dBW) per channel with 5 channels driven represents a clear benchmark for the category (3 to 4 dB greater than flagship receivers from many other manufacturers achieve).
In a career spanning four decades, Sunfire's founder and chief designer Bob Carver has morphed from bushy to bald, young Turk to elder (or at least older) statesman, and iconoclast to anointed icon. Throughout, one thing neither he nor his designs has ever been is dull, and Sunfire's latest "Theater Grand" A/V receiver is no exception.
The Sony STR-DA5200ES presented no surprises. Power was generous in all tests save all-channels-driven, where the receiver topped out at 66 watts all around; note that this is only 4 or 5 dB less than from the most powerful receivers we've tested on the demanding all-channels-driven test.