basstraps and acoustic pannels

[MouseRider]

Basic acoustic treatments to prevent reflections can help pretty much most installations. If you want to go serious, there are also hardware you can use to suspend your drywall to prevent vibrations. There are plenty of easy to install materials these days as the links posted before will lead you to I'm sure.

But when it comes to bass-traps and other forms of more advanced acoustic treatments, they aren't just "drop it in and your room will have better sound" accessories.

If applied wrong, these things could actually make your room sound worse, especially bass or frequency traps. Many of the advanced acoustic treatments are meant to deal with problems with standing waves and frequency problems (i.e. null points, spikes) and you really need to have the right equipment and some acoustic knowledge to do things right.

Many new receivers today have automatic room equalization systems which can actually give you better results than just blindly or randomly sticking in acoustic treatments.