My listening room is also somewhat small. I found that, at anything approaching a realistic(live or monitor) listening level; the room was overloaded. Treating the back wall(behind my listening position, about 2/3: top-down) with 3" Auralex and LENRD bass traps completely cured that issue. There are less expensive alternatives on eBay as well: (http://shop.ebay.com/?_from=R40&_trksid=p3984.m38.l1313&_nkw=acoustic+foam&_sacat=See-All-Categories) Stand in the middle of your listening room and clap. If you can hear much reverb; that's probably the problem(based on your description).