Bass traps

Low frequency (Bass) sound waves are long and very strong, so they are hard to stop.  Bass sound wave accumulate in corners of the room, the most problem area's are where the walls meet the ceiling.

The corners of a room have the effect of amplifying sound and acting as a secondary sound source. This ‘secondary’ sound arrives at the ears of the listener a split second after the direct sound from the speakers, degrading the original sound information.