Would the Denon 3802 be OK with 4ohm speakers? I am looking at Mordaunt-Short 500 system, the 502 fronts and the 504 center are 4ohm. The 506 rears are 8ohm. The Denon manual says 6-16 ohms for the fronts and 8-16 for the rears I believe. But then just after that it has a blurb that the receiver may go into protection if speakers with too low impedance are used. It then says for example LESS than 4ohms. ?? So anyway I wouldn't want to get these speakers and have my receiver going into protect all the time just to wind up having to replace one or the other. Any insight or experience would be appreciated.