I purchased these bass traps at $170 each and they have greatly improved my living room's acoustics. I used them with my planar speakers and since I have recently sold them, I've decided to sell my bass traps at $120 each in a box (or $300 for all three panels).
Brief product description:
> Dimensions: 48” x 24” x4”
> Weight: 19.5 pounds
> No-fuss installation
> Super effective broadband absorption – absorbs frequencies across the entire band (low, mid, high), slap echo, and other intrusive noises without making your listening space too dead
> Creates superior sound – low frequencies become clear and distinct, stereo imaging is greatly enhanced, and sounds/voices are placed in their proper place over the entire sonic landscape
> Sturdy and portable design
> Absorption range: 20Hz – 20kHz
Full product description can be found here:
All frames are free of scratch, and the fabric is spotless so I give a "9" rating. They are also less than 2 years old.