SOUND TOWN PAC180X12CS8N COMMERCIAL AUDIO SET: The Sound Town PAC180X12CS8N commercial audio bundle includes (1) Sound Town PAC180-6 power amplifier and (6) STCS8N-PAIR (12 in total) two-way in-ceiling speakers SOUND TOWN PAC180-6 POWER AMPLIFIER: The Sound Town PAC180-6 amplifier works with 70V/100V or 4~16 ohm low impedance speakers, delivering 180W of power output. It supports Bluetooth and has 6 zones with individual volume controls. Built-in clipping limiter protects your speakers and amp from overheating SOUND TOWN STCS8N IN-CEILING SPEAKERS: Includes (6) STCS8N-PAIR (12 total) coaxial in-ceiling speakers, each equipped with an 8' woofer and a 1' coaxial compression driver capable of 80W RMS and 160W program power at 8