Any of those receivers mentioned will get the job done. Just make sure you get a receiver that has the features you need/want.

I also suggest you add pioneer and harman kardon to your list. Find the best price/performance ratio between these brands and then you'll be ready to make those m50's sing.


*Michael*
AV123 Refugee - X-LS Encore, X-Voce, X-Omnis, Elt-Dpa's
Denon AVR-591
Magnavox NB500MGX BDP