I believe I am familiar with the "pressure" you are describing. I too have my sub at the end of my couch. But I also get a similar feeling listening to my car radio after a while. I love listening to music, and just hearing in general, so I went as far as going to an Audiologist for an examination. I checked out fine, but still have that odd feeling, so not sure what to tell you. When I have the option, I just try to sit at least 4ft from my Sub, which ends up being about center of the couch. I understand how worrisome it can be feeling something affecting your hearing, especially if your a lover of music... and since you are here, I know you are!