A couple of months ago I purchased a kit from HomeCinemaHeaven, consisting of a Pioneer 565A DVD and a VSX-C301 tuner (and some Canton speakers). I'm very happy with the film/tv side of things as far as this kit goes, but I've just realised that the tuner doesn't have analog inputs to enable me to play DVD-A & SACD! I've played the latest R.E.M. DVD using 5.1 and it sounds pretty good. Is the difference in sound quality, between DVD-A/SACD and 5.1 such that it's worth replacing the tuner with say, the VSX-C501? (I need a slimline tuner to sit under my Tosh 36ZP38).