Hear less boom and more real bass

The Auralex SonoLite Bass Trap is a 3" thick, 2-foot-square fabric-wrapped sound absorption panel. It's designed to be used as a "corner trap," providing low-frequency control when placed horizontally in a corner at the juncture of two walls, or vertically where a wall meets the ceiling or floor. Compared to similar products, Auralex's Bass Trap is a more cost-effective and visually appealing way to alleviate the problems of uneven, muddy, or boomy bass.

Low-frequency control for your listening room, studio, or home theater

One of the basic facts of room acoustics is that low frequency sounds tend to gather at the room's boundaries, and especially in the corners. That creates uneven low-frequency response — some frequencies are boosted while others are diminished. You can easily hear this unevenness just by walking around your room and standing in the corners or next to the walls.

Each SonoLite Bass Trap is made of Auralex's extra-dense Studiofoam acoustic foam, which is then wrapped on the front and sides with thin, stylish velour fabric. The back of the Bass Trap is angled on the sides so you can wedge it snugly between two room boundaries. Once in place, the Bass Trap forms a triangle with either two walls or a wall and the floor or ceiling, creating an air pocket behind the panel. The combination of the 3"-thick foam and the air pocket absorbs frequencies from 100Hz up without attenuating the deep bass frequencies that add so much to music and movie soundtracks.

Taking the measure of a sound absorber

The Auralex SonoLite Bass Trap has an NRC rating of .55 at 125Hz and 1.0 at 250Hz. NRC (Noise Reduction Coefficient) is the most common spec listed with sound absorbing products, and represents the amount of energy absorbed when sound strikes a surface. An NRC of 0 indicates 100% reflection, while an NRC of 1.0 indicates 100% absorption. For more information on sound absorption, check out our room acoustics article.