I have the VSX-1014Tx (Rebadged Elite 52Tx minus the RS-232C serial connection to computer, the 12 v trigger output, and the pretty "ElitE" badge). I find that it has MORE than enough power for my M60s (especially since I use the internal Bi-Amp feature to make the front essentially 2x220W and the other three channels 110W. I would imagine that the 56TXi would be even better due to the firewire support for digital transfer of hi-res audio and higher farad rating capacitors (for more peak power). Since I don't have an SACD or DVD-A player yet, I am happy with this thing for now. (It's a nice temporary until I get a hi-res multi-player.)
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