Restaurant Sound System with JBL Speakers, Crown Mixer Amplifier, and Atlas Sound Volume Control This bundle contains: (4) JBL Control 14C/T Compact Ceiling Loudspeakers, Atlas AA35 35 Watt Mixer Amplifier, (1) Atlas Sound AT100D 100 Watt Volume Control (Decora White) & (250') West Penn 224 18/2 Speaker Wire Speakers have a blind-mount backcan for quick and easy install 74 Hz  20 kHz bandwidth with wide 120 coverage 100 mm (4.0 in) high output driver with polypropylene coneand butyl rubber surround UL1480, UL2043, NFPA90 & NFPA70; S7232/UL Listed, Suitable for use in air handling spaces