Quote Originally Posted by shaemus
Can someone suggest a link where I can learn how to improve the acoustics of my listening and home theatre room.
Here are a couple regarding building DIY bass traps and proper placement. I'm a big believer in the value of these for both node control and diffusion in my listening room. I have two Risch quick and dirty bass traps in the back corners and twelve (six columns of two units each stacked) of the Gale style - (4) 18" and (2) 13" placed in the remaining corners and wall mid points.

Joh Risch DIY

Gale Bass Traps

Placement guidelines