It is definitely an issue with my Harmon Kardon. Talked to Oppo and Alan. Hooked the 83 to my TV and the sound was fine. Good news is the analog sounds great and when you set the receiver to 6 channel DVD you get bass management. Alan said the sound loss is negligible and it is the recording that makes the real difference. Watched the Dark Knight last night and even though my receiver is only HDMI 1.1 I got wall rattling sound from my EP 400 & 125 which wasn't the case before with my old player.
M22v2 vp100v2 M2v2 surrounds EP400/EP125 Onkyo TX-SR876 Oppo BDP-83 NAD C542 Sony XBR9