The Yamaha A-S801 (or A-S701 since you have an external DAC) has good, clean power and 100wpc. I like Musical Fidelity as a brand, but I haven't heard the M2si. I did like the M3i and the M6si quite a bit.
I'd suggest buying from one of the online dealers that allow at least 30-day returns - Music Direct, Audio Advisor, Crutchfield.
Good luck in your search,Scott
I'd suggest buying from one of the online dealers that allow at least 30-day returns - Music Direct, Audio Advisor, Crutchfield.
Good luck in your search,Scott