Both are good, read March 2000 Stereophile Sam Tellig review of MF A300, he has reviewed both and compares them to each other.....bottom line is Tellig purchased A300 review sample, that says it all. A3 exactly same design with 85w instead of 150w, same sound, I own A3 among other MF amps. Audio Advisor won't screw you over, 30 day return ploicy ........both are highly rated products....regards Sam
