I'd say it's probably the listening position and/ or the speaker positioning within the room that is causing a perceived bass loss at your listening position. A quick way to find out if this is the case is to simply move your listening chair 1-2 feet forward and backwards from where it is now, in 1-foot increments to see if the bass improves at all. If so, then you know you're onto something.
low bass response
My system, which is shown on my profile, does not seem to produce the low bass I would expect it to. I listen near field, and my room is 13'x30'x9'....in your experience, is this most likely due to my room and near field position?