Bass Traps (BT) are very effective sound absorbers, especially good at absorbing low frequencies. Bass Traps come in two types: Radius (BTR) for wall application and Corner (BTC) for inside corner applications. When placed in corners (BTC) Bass Traps are very effective at reducing the noise reverberation caused by inside corners. Bass Traps are useful in acoustic treatments for studios, theaters or settings that require critical listening and low-frequency reduction.