The SmartPak LENRD Bass Traps from Auralex contains four, two-foot high bass traps, that can provide eight linear-feet of bass management.
The LENRD Bass Trap (Low-End Node Reduction Device) is extremely effective at smoothing out low frequency room nodes. Great for use in any room, but most effective in rooms smaller than approximately 16 x 16 feet.
Superior broadband absorption, especially at low frequencies
Easiest and most cost-effective way to control excess low frequencies without giving up large amounts of cubic space
Fit room corners and wall/ceiling junctures perfectly
Class B flame retardancy
Will not crumble with age