Home Theater HifiThe M3 is not only an excellent integrated amplifier, it is an unusual one as well. The distortion measurements did not change much between 8 ohm and 4 ohm loads, which means the output tended not to move into areas that the power supply could not handle. This was by design, and itís no wonder that the M3 is still around after five years, with only minor changes. Itís great. I am not sure anything else needs to be changed.