Hi Robert.
I tried to drive a pair of M22Tis with a 5 wpc SET tube amp. It was not a successful mating. What is interesting is that most of the time my amp is putting out less than 1 watt at normal listening levels. For some reason, unlike the M3s, the M22s need more juice. I have no idea why.
My tube amp is rated at 15 wpc in pentode mode. Still did not sound right.
I'd go with a 25 wpc or higher tube amp to go with the M22s, but that's just extrapolating from my unsatisfactory experience with a lower power tube amp.
