My setup: Comcast cable box HDMI goes to V673; only using front speakers and 2 subs.
I just received the V673 from B&H today and not getting much sound at all on some SD and HD channels. Sometimes there is an unusually loud background audio track but no voice. Sometimes hardly anything audible at high volume setting. Most channels are OK but their sound seems uneven from channel to channel. Tried all HDMI inputs and still get dead/weird audio on some channels.
No problems going straight from cable box to HDTV (no external speakers). Swapped back & forth to make sure. Blu-ray player was OK but didn't try playing it for long.
Any ideas besides RMA?