Atlantic Technology System FS 3200 LCR 5.1 Home Theater System You Will Receive: 1 Atlantic Technology FS-3200 LR (GLB)....2 Each Atlantic Technology FS-3200 C (GLB)....Each Atlantic Technology 2400SR-P-BLK .....2 Each BIC Acoustech PL-200.... "However, these speakers have several performance and mounting innovations that make them far more capable than ordinary on-wall speakers."... "Unlike conventional flat-panel speakers, the FS-3200s do not require a subwoofer to deliver full-bodied, exciting musical performance. All by themselves, these speakers add great sound to installations where space or dcor precludes using a subwoofer."... "By utilizing two high-power 4  drivers and two 4  Pressure Drivers in a tuned enclosure, the bass response extends to within an octave of the very lowest musical notes while maximizing power handling and minimizing distortion"...