I drive my M80's with an Emo DMC-1 pre/pro and MPS-1 7 channel amp and have never shut down. I, like Jc, have been eyeing the UMC-1 for a while. I have not, however, done much homework into whatever issues are being had with the unit (I'll go back and read the avs thread at some point). The only issue I have with the DMC is the lack of HDMI connections. The UMC would solve it. Couple that with EMO's 40% discount for existing owners and it becomes quite attractive. The one downfall I see with the unit is the lack of XLR connections for outputs to the amp - it only has an XLR connection for the sub.
Just my $0.02.
