QSC AcousticDesign surface loudspeakers offer a variety ofmodels specificallytailored fordemands of higher fidelity applications. Designed for clarity and presence, these loudspeaker systemsdeliver pristine audio reproduction forinstallations requiring a refined audio experience. Models ship complete with the award winning X-Mount system and weather input cover.

Features

• Dual 8″ polypropylene cone woofers
• Large port area for extended low-frequency performance
• Dual-chamber ported bandpass cabinet
• Defeatable passive 120 Hz low-pass filter with impedance compensation
• 250 watts continuous power handling, 700 watts peak
• 70/100 V multitap transformer with 8 ohm bypass
• Yoke mount and flying hardware included
• Marine grade plywood construction

Package Includes

• AD-S28Tw loudspeaker
• Yoke mount
• Suspension hardware kit
• Grille backing cloth

Specifications

• Configuration: Surface mount bandpass subwoofer, ported
• Low-frequency transducer: Dual 8″ (200 mm) weather resistant, polypropylene cone woofers, rubber surround
• Frequency range
• Frequency response (-6 dB): 42 to 165 Hz
• Useable frequency range (-10 dB): 36 to 205 Hz
• Filter 120 Hz low-pass, passive, bypassable
• Maximum output: Calculated peak / continuous Output
• 2 pi (half space): 124 dB SPL / 118 dB SPL
• 4 pi (full space): 118 dB SPL / 112 dB SPL
• Nominal impedance: 8 ohms
• Continuous power handling: 250 W (2 hours IEC)
• Recommended max amp power: 500 W (loudspeaker “program” power)
• Sensitivity: 94 dB, 2.83 V at 1 m, half space (2 pi)
• Transformers:
• Type Custom low distortion laminated core, wide bandwidth design
• Taps 70V: 200, 100, 50, 25 W; 8 bypass
• 100V: 200, 100, 50 W; 8 bypass

Enclosure

• Material: Marine grade plywood, ABS, steel grille
• Environmental: Exceeds Mil Spec 810 for humidity, salt spray and dust; IEC 60529 IP-X4 splash rating
• Finish: Textured black paint
• Grille: Painted steel
• Connectors: Four-position barrier strip; 2 in / 2 out
• Mounting Hardware:
• Black powder coated steel yoke with attachment hardware
• Black zinc coated forged shoulder steel M6 eyebolts
• Black powder coated steel shear plates with attachment hardware
• Black rubber feet with integral threaded bolt
• Net Weight 43 lb / 19.5 kg
• Shipping Weight 55 lb / 25 kg