Sounds like I have a similar problem but I am at no where near the level of understanding that you boys are.
I have a Denon AVC-A1 and I've never really set it up properly due to time constraints, lockdown has changed that. The Denon model probably gives away the age of my kit but running test tones yesterday gives results from the 5 but not the .1, and yet the sub is definitely working when playing a movie. I would like to get it set up as best I can as a/ its about time I did and b/ I've got a new TV coming sometime this week!
I have a Denon AVC-A1 and I've never really set it up properly due to time constraints, lockdown has changed that. The Denon model probably gives away the age of my kit but running test tones yesterday gives results from the 5 but not the .1, and yet the sub is definitely working when playing a movie. I would like to get it set up as best I can as a/ its about time I did and b/ I've got a new TV coming sometime this week!