QSC AD-P SUB AcousticDesign Pendant Subwoofer (Black)The QSC AD P. SUB is part of the AcousticDesign Series SUB SAT loudspeaker solution, which is ideally suited for background music applications that require depth and clarity even at lower volume settings. The AcousticDesign Series SUB SAT loudspeakers are specifically designed to be mix and match capable; meaning any combination of satellites may be paired with any subwoofer in the AD Series SUB SAT line. Features: Dual voice coil for improved thermal