None taken, in fact I totally agree, which boggles my mind as too why I need to turn down the gain. I guess what I don't understand is, lets say I replace my current sub with an epik/submersive/SVS/HSU high end big boy, would Audyssey be requiring me to lower the gain on them even more than my current sub all things being equal? Is audyssey setting the level trim based on output or something else (or in conjunction with)
My subs gain nob goes from 0 to 10 - Audyssey wants it at 2.3ish for a good trim, it seems like I'm not even using my sub. It's as if my sub is way too powerful for my room at least from my listening position, of course based on everything I've read and researched the sub is under powered for my size room but what does that mean.
The Submersive would be fine - in my 1000 cu ft room I have two of them and Audyssey sets my trim at about -5dB. The gain knob on the Submersive is like one or two clicks from the minimum.
The latter doesn't matter - the knob is a gain control not a volume control and the sub is still delivering its maximum capability, but from a lower input. You are not 'wasting' any of the sub.
Let's not worry about the sub being underpowered for the time being - let's try to correct the issue you are having. The mention of the null worries me - can you move the sub, albeit temporarily, to another position in the room? Do you have an SPL meter?