I also have this thread posted under receivers thinking it might be a set up problem there as well. After a recent reno, I re-hooked my HT system and found all was well except when I playback the" DVD AUDIO" & regular "CD'S my SW does not enguage. Its works fine when I playback DVD movies and when I access the tuner. My Panasonic DVD-S77 is set up @ 48htz and DD & DTS is set to bitstream. The SR 7000 Marantz receiver speaker menu shows"SMALL" for the front speakers & SW as "YES" . Sure would appreciate any help here. PS seem to have this problem every time I dismantel the sytem and re-hook?