Auralex LENRD Bass Traps Smartpak - Charcoal 4-pack Acoustic Studio Bass Trap
LENRD stands for Low-End Node Reduction Device. A resonance bump in a room's frequency response is called a room node. Now, thanks to LENRD, you can achieve low frequency accuracy other companies can't give you! Bass traps substantial enough to control nodes have always been expensive to buy or intricate and time-consuming to build, but not anymore! LENRD is extremely effective at smoothing out low frequency room nodes at a price that anybody can afford!