Presonus AIR18s Active Sound-Reinforcement Subwoofer

• 18-inch low-frequency driver with a 3-inch voice coil • 1,200W (peak) Class D power amp, max. SPL 129 dB peak with 30 Hz to 150 Hz frequency response • 2 combo XLR and ¼-inch line inputs and two XLR direct outputs • Easy-to-use DSP performance presets: Normal and Mo' Bass • Alignment delay (adds delay time relative to full-range speaker) and Polarity switch • Rugged, texture-painted, birch enclosure with tour-grade, 17 gauge steel grille, Introducing the Presonus AIR18s Active Sound-Reinforcement Subwoofer Designed to complement any full-range PA loudspeaker, and a perfect companion for the PreSonus® AIR-series, the AIR18s active subwoofer delivers a powerful, clear and accurate low-end punch. With its 18-inch low-frequency transducer, driven by 1,200 watts (peak) of Class D power, it provides plenty of detailed bottom end, all the way down to 30 Hz. Brilliant on the move and in situ Despite its power, the AIR18s is portable, compact and lightweight, with a rugged, tour-grade birch enclosure. It's easy to transport and suitable for mobile applications, as well as installs, with integrated provisions for the included caster kit, ground-stacking provisions and ergonomic handles on both sides. Easy to control, joyous to refine AIR-series subwoofers feature easy-to-use controls and signal-processing presets. Set them for normal front-of-house use or boost the low-end with the Mo' Bass preset. Reverse polarity, use the lowpass filter to set a crossover frequency, adjust the power amp's master output level, even turn the grille LED off for installs - all at the touch of a button. A variable alignment delay properly aligns your three-way system. Efficient sound production Most subwoofers are essentially omnidirectional, which can cause feedback onstage and make monitoring difficult. Creating a subwoofer array helps keep excess energy off of the stage and in the audience. AIR-series subwoofers provide the tools you need to create these arrays with ease. Most important, the AIR18s sounds great, delivering outstanding low-end clarity and natural music reproduction.