Bass traps

Bass traps can cure bass problems. They can help control standing waves which is dependent on the distance between parallel opposing walls and the floor to ceiling distance, and not on speaker placement. I used rolls of R19 stacked up to the ceiling in one corner of my room, and that tightened up my bass tremendously.

I also use R19 rolls to eliminate first order reflection off the side walls.

I am sure purpose built sound traps will work better.

Regards
Paul

Bass traps can certainly help bring the bass out more strongly by lessening the megaphone effect that room corners have, thereby attenuating reflected bass frequencies that can phase cancel the direct bass from the speakers.

I use the Auralex Lenrd traps, three in each front corner in stacks and this made a noticeable imporvement to the bass response. It also cleared up the low mids.

Thanks to Tobias and Pauly, I tried what you did with a couple of bags of Roxul Safe 'n Sound. It works! Better soundstage and tighter bass, more defined instrumental presentation.
So the traps will be on order soon since my wife is sure to discontinue uhmm.. services.. otherwise.

Speaker placement is the single most important part of the setup of a system and will in a big way determine the quality and quantity of the bass. Granted room demensions will also have a big effect on the bass responce of a room.
One other big words of advise is when placing speakers in a room do not have any accoustical treatment in the room. You want to place your speakers so one the bass is were you want it and the room has the least effect on the sound. You will hear it. Ive seen to many people, and many well respected audiophiles that try placing speakers with a room full of sound panels. WRONG As far as bass traps. Problem is that in order to effect bass in a room they must be very large. In wall Helmholtz resonators are the only way to effect the bass to any degree. They need to be built into the walls and holes drilled to tune them to the frequencys your trying to effect. Trust me try speaker placement first. lol Kevin