I have Cambridge sw t300 and a denon avr1910 I’m using the sub output from receiver but when I go to either increase, decrease or go to no sub I get no change in sub output level. The subs are working and I can use the controls that are on the speaker for sub level but I just can’t get any response +/- when trying to control from receiver. If I use the audessey mic to process when it gets to the sub I get some output but it sounds like possible only coming from one speaker and the output is minimal and certainly not at any sub frequencies. It almost sounds like it coming from one of the mids. I should investigate that further now that I think about it. Thoughts?