The StudioLive™ 18sAI active 18-inch PA subwoofer is designed to combine with the full-range StudioLive AI-series speakers to form a true four-way system, while still being flexible enough to work with other powered loudspeakers. Driven by 1,000W of Class D amplification and massive amounts of onboard DSP, it features three alignment presets that compensate for placing the subwoofer a meter or two away from the full-range system allowing it to correctly combine with full-range cabinets. This results in tighter bass response and bigger sound without more volume.
Onboard DSP contours retune your subwoofer based on your application: normal live sound or extended low frequency. The 18sAI also provides stereo full-range line inputs (XLR/¼-inch combo) and full-range, switchable stereo/summed-mono line outputs (XLR).
Free SL Room Control speaker-management software provides wireless setup and advanced control of individual and grouped speakers, including alignment delays, polarity reverse, and real-time performance monitoring—the equivalent of a high-end outboard speaker processor and more.
18-inch transducer with 1000 watt, Class D amplifier
Active integration 32-bit, 96kHz DSP with variable crossover, dynamic limiting and excursion limiting
Wireless networking with free SL room control software for Mac, Windows and iPad enables complete setup, tuning, and monitoring
Stereo line inputs (XLR-1/4-inch combo) and switchable stereo/summed-mono line outputs (XLR)
Alignment delay (switchable: 0, 2 or 4 feet) enables subwoofer to be placed in different positions relative to a full-range speaker system
Integrated pole insert and interlocking stacking provisions
Active Integration 32-bit, 96 kHz DSP with more processing power than three rack speaker processors