QSC AD-S28Tw Acoustic Design Series is a surface mount subwoofer system. It design to supplement audio systems by adding low-frequency extension, And it is acoustically match to the entire AD Series. Frequency Response (-6 dB) 42 Hz – 165 Hz RMS Power Handling3 250 W (2 hours IEC) Low-frequency Transducer Dual 8" (200 mm) weather resistant, polypropylene cone woofers, rubber surround Product Dimension(W x D x H): 22.75" x 9.9" x  15.9"(603 mm x 251 mm x 404 mm)

QSC AD-C81T w Acoustic Design is a ceiling mount subwoofer system. And it designed to supplement audio systems with low-frequency extension. Frequency Response (-6 dB): 39 Hz – 184 Hz 8" Polypropylene Cone Woofer RMS Power Handling 100 W (100 hours IEC) Product Dimension: Diameter 12.6"(321 mm) and Height 14.5"(368 mm)

QSC AD-S8T White Acoustic Design surface mount loudspeaker is a professional, 70/100V,  two-way, full range system. And it ideal for a wide variety of foreground and background sound reinforcement applications. Effective frequency range: 55 – 20k Hz Rated noise power / voltage: 200 watts / 40 volts (rms) Coverage angle (-6 dB): 105° Product Dimensions: 17.3” x 10” x 9.9” (440 x 254 x 251mm)

QSC AD-S8T Black Acoustic Design surface mount loudspeaker is a professional, 70/100V,  two-way, full range system. And it ideal for a wide variety of foreground and background sound reinforcement applications. Effective frequency range: 55 – 20k Hz Rated noise power / voltage: 200 watts / 40 volts (rms) Coverage angle (-6 dB): 105° Product Dimensions: 17.3” x 10” x 9.9” (440 x 254 x 251mm)

QSC AD-S162T White Acoustic Design is a columnar array line consisting of sixteen weather treated 2.75" transducers. Columnar loudspeakers are ideally suited for a wide variety of acoustically difficult applications where speech intelligibility is a primary concern. Effective frequency range: 90 Hz – 17 kHz Rated noise power / voltage: 200 watts / 40 volts (rms) Transducer (x16) 2.75 in (69.8 mm) weather treated paper cone woofer Product dimensions (H x W x D): 45.8 x 5.2 x 5 in. (1162 x 131 x 126 mm)

QSC AD-S162T Black Acoustic Design is a columnar array line consisting of sixteen weather treated 2.75" transducers. Columnar loudspeakers are ideally suited for a wide variety of acoustically difficult applications where speech intelligibility is a primary concern. Effective frequency range: 90 Hz – 17 kHz Rated noise power / voltage: 200 watts / 40 volts (rms) Transducer (x16) 2.75 in (69.8 mm) weather treated paper cone woofer Product dimensions (H x W x D): 45.8 x 5.2 x 5 in. (1162 x 131 x 126 mm)