His point was behind his simple one word question, "Why?" Why would you want to change from a perfectly good working amp to another amp that doesn't have any real benefit to do so? What, if any, difference in power there is between the two will not be audible and barely even measurable. Because of that fact, and especially for daily systems that aren't being used to chase numbers in competition, it rarely ever makes any sense to change up amps with no other real benefit to be had from doing so. I would also not be the least bit interested in using an amp that posts it's power ratings derived from some "oscilloscope" method and that damn SMD AD-1.