The LS400 Sub-Bass extends the usable range of the PS8 Loudspeaker to 40Hz, providing high performance and high power output (131dB Peak) in an extremely compact, light weight package.The NEXO-designed shielded 12in Neodymium driver allows the LS400 to be used in close proximity to magnetically sensitive video equipment. Features VLF extension (to 40Hz) of PS8 Loudspeakers, Sophisticated control electronics ensure reliable, linear operation, Integral pole mount that supports 1 or 2 PS8 Loudspeakers.