• PreSonus ULT18 18” Active Subwoofer

    C$1,749.00 C$1,599.00


    To provide maximum versatility, the ULT18 offers several important user controls. Unlike most subwoofers in this class, the ULT18 features a variable lowpass filter that enables you to accurately dial in the crossover transition between the subwoofer and your full-range system. Two DSP presets provide extended low-frequency performance or a more natural response to suit a variety of applications, and of course you get polarity reverse. A Mono Mode function is also provided to simplify cabling multiple mono subs in a stereo system.

    ULT18 loudspeakers were designed by WorxAudio®, the commercial loudspeaker division of PreSonus. Headquartered in Greensboro, North Carolina, WorxAudio has been at the forefront of loudspeaker development for the pro touring and contractor markets for the over 30 years. WorxAudio continues to embrace the latest technology, delivering innovative products and installation designs for professional clients, and their products can be found in prestigious facilities worldwide. So you can rely on ULT loudspeakers to deliver the top-quality professional performance and features that touring engineers and systems integrators need.


    Main Components

    • 18-inch custom Kevlar® woofer with 4-inch voice coil
    • 7 mm driver travel before over-excursion
    • 2,000W Class D power (2 × 500 W continuous)
    • Stereo combo XLR and ¼” inputs with direct outputs
    • Onboard fully variable lowpass filter lets you dial in upper frequency limit


    • Output Level
    • Lowpass Filter
    • Preset Select
    • Polarity Invert On/Off
    • Mono On/Off
    • Front LED On/Off

    Convenience Features

    • Defeatable front-panel LED
    • Rugged, texture-painted birch enclosures
    • Tour-grade 16 gauge steel grille
    • Comfortable ergonomic handles
    • Ground Stacking provisions
    • Integrated castor provisions (castor kit sold separately)
    • Locking IEC connection