MACKIE THUMP18SV4 18" Powered Subwoofer

Description The Mackie Thump18Sv4 active subwoofer is designed to add powerful low-end performance to any PA system, delivering deep bass and punchy impact for live events, DJs, venues, and mobile sound applications. Combining a high-efficiency 1400W Class-D amplifier with an 18" high-performance woofer, it produces up to 132 dB SPL with impressive low-frequency extension down to 28 Hz for floor-shaking bass response. Built for professional use, the Thump18Sv4 features a rugged yet lightweight enclosure with integrated handles for easier transport and setup. Selectable high-pass modes allow seamless integration with Mackie Thump loudspeakers or other PA systems, while variable crossover control provides additional flexibility for customised system tuning. Designed for versatile deployment, the subwoofer includes stereo XLR inputs and outputs, mono or stereo summing options, phase inversion, and adjustable output levels. Pole mounting compatibility allows a full-range loudspeaker to be mounted directly above the subwoofer for a compact, professional PA setup. Features 1400W Class-D amplifier delivering up to 132 dB SPL 18" high-performance woofer with low-frequency response down to 28 Hz Optimised for live sound, DJs, venues, and mobile PA systems Selectable high-pass modes for easy integration with Mackie Thump loudspeakers Variable crossover mode for matching with other PA speakers 1.4 ms alignment delay included across all crossover modes Stereo XLR inputs for mixers, DJ controllers, and audio sources Stereo XLR high-pass outputs for loudspeaker connection Stereo XLR full-range outputs for linking additional subwoofers Stereo or mono summing modes for flexible system configuration Phase invert switch for system alignment Variable level control from mute to +6 dB Defeatable front LED indicator Rugged lightweight enclosure with integrated carry handles M20 threaded pole mount for speaker pole installation Compatible with Mackie SPM400 speaker pole (sold separately) Specifications Amplifier type: Class-D Amplifier power: 1400 W Maximum SPL: 132 dB Woofer size: 18" Low-frequency response: 28 Hz Inputs: Stereo XLR High-pass outputs: Stereo XLR Full-range outputs: Stereo XLR High-pass modes: Thump 12 (140 Hz), Thump 15 (110 Hz), Thump GO (150 Hz), Variable Alignment delay: 1.4 ms Level control: Mute to +6 dB Phase control: Phase invert switch Pole mount: M20 threaded mount Construction: Rugged lightweight enclosure Handles: Integrated carry handles Height: 541 mm Width: 630 mm Depth: 605 mm Weight: 31.9 kg