PRESONUS AIR18s: Active Sound-Reinforcement Subwoofer

Designed to complement any full-range PA loudspeaker and a perfect companion for the PreSonus® AIR10, AIR12, and AIR15, the AIR18s subwoofer delivers a powerful, clear, and accurate low-end punch. With its 18-inch low-frequency transducer, driven by 1,200 watts of Class D power, it provides plenty of detailed bottom end—all the way down to 30 Hz. Yet it is portable and well suited for mobile applications, as well as installed systemsince each venue has unique acoustics and each application makes different demands on a sound system, we’ve equipped AIR-series subwoofers with easy-to-use controls and signal-processing presets. Set your subwoofers for normal front-of-house use or get an even bigger low-end with the Mo’ Bass preset. Set them to perform in an array. Reverse polarity, use the lowpass filter to set a crossover frequency, adjust the master output level of the power amplifier, even turn the grille LED off for install applications or set it to illuminate only when the protection limiter is engaged—all at the touch of a button.Features Main Components 1,200W (dynamic) Class D power amp 18-inch woofer with a 3-inch voice coil Frequency response: 30 to 150 Hz Max SPL: 129 dB 2 combo XLR-¼-inch line inputs and two XLR direct outputs Controls Easy-to-use DSP performance presets: Normal — typical FOH use Mo’ Bass — extended low-end performance Locate—adjusts performance for arrayed and non-arrayed applications Normal — non-arrayed applications Cardioid — create a ground-stacked cardioid subwoofer array (using two of the same model subwoofer) Endfire — create an endfire cardioid subwoofer array (using two of the same model subwoofer) Fully variable lowpass filter (sets the upper frequency limit/crossover point) LP filter presets for use with AIR15, AIR12, and AIR10 LP filter presets for use with AIR15, AIR12, and AIR10 Alignment delay — adds delay time relative to full-range speaker Polarity — invert the polarity of the summed input signal Convenience Features 2 comfortable ergonomic side handles Ground-stack provisions Caster provisions (caster kit included) Defeatable front-panel LED Rugged, texture-painted, birch enclosure Tour-grade, 17 gauge steel grille