PreSonus AIR18s Active 18" 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. Its 18-inch low-frequency transducer, driven by 1,200 watts (peak) of Class D power, provides plenty of detailed bottom end, all the way down to 30 Hz.

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 and installs, with integrated provisions for the included caster kit, ground-stacking provisions, and ergonomic handles on both sides.

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, and 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.

Most subwoofers are essentially omnidirectional, which can cause feedback onstage and make monitoring difficult. Creating a subwoofer array helps keep excess energy off the stage and in the audience. AIR-series subwoofers provide the tools you need to create these arrays easily.

Most importantly, the AIR18s sounds excellent, delivering outstanding low-end clarity and natural music reproduction.

PreSonus AIR18s Active 18"  Subwoofer features:

• 18-inch low-frequency driver with a 3-inch voice coil
• 1,200W (peak) Class D power amp
• Maximum SPL 129 dB peak with 30 Hz to 150 Hz frequency response
• Two combo XLR and ¼-inch line inputs and two XLR direct outputs
• Easy-to-use DSP performance presets: Normal (typical FOH use) and Mo' Bass (extended low-end performance)
• Locate adjustment presets: Normal (non-arrayed), Cardioid (ground-stacked cardioid array), and Endfire (endfire cardioid array)
• Fully variable lowpass filter (sets the crossover point) with presets for AIR15, AIR12, and AIR10
• Alignment delay (adds delay time relative to the full-range speaker) and Polarity switch (inverts the summed input signal)
• Two comfortable ergonomic side handles, ground-stack provisions, caster provisions (caster kit included), and defeatable front-panel LED
• Rugged, texture-painted, birch enclosure with tour-grade, 17 gauge steel grille