Surprise! surprise!
Received my tube integrated amp last night and couldn't wait until this weekend to do some testing.
I hooked the amp up with a 15 yrs old CD player (it doesn't even have digital output which is perfect for this situation) and played it through my M80. The sound was surprising good, even the amp claimed 30 watts output yet I didn't feel any less of the power. The bass is strong, the mid is clean and the treble is singing. I would say the $350 integrated amp is on par with my $4,000 B&K ref. 50 and Marantz Amp.
I will do some critical comparison this weekend.