Originally Posted by mjmcmahon67
I'll have to confirm, but I believe the sub level trim is set at +2.5db. The thing that doesn't make sense is that the subs function just fine when I'm playing a DVD or BluRay - just nothing from streaming or DirecTV. I'll play with the sub level trim when I get home this evening and see what I can figure out.
After playing with my setup some more on Friday, I found and fixed the problems. The primary issue was that the subwoofer cable that routes to the M&L 700W wireless transmitter had gotten loose. After playing with the levels on the subs themselves (rather than manipulating the output trim) I'm getting consistent sub out of all inputs. I was watching some old DS9 episodes on Amazon last night and they did not have any sub out, but I presume that's because it's stereo coming across PCM as well as being old broadcast tv rather than an issue with my system setup.