The Mackie THUMP15SV4 powered subwoofer enhances low frequencies in live applications, DJ setups, and professional PA systems. It features a 1400 W Class-D amplifier and a 15" woofer, with a maximum output of 132 dB SPL and low-frequency response down to 34 Hz.

Stereo XLR inputs connect to DJ controllers, mixers, and other audio sources, while stereo XLR High-Pass and Full-Range outputs allow you to connect additional speakers or subwoofers. Selectable High-Pass modes include settings for Thump12, Thump15, and Thump GO, as well as Variable mode for manual crossover adjustment. A 1.4 ms alignment delay is applied in all modes.

• Type: Powered PA subwoofer
• Color: Black
• Amplifier power: 1400 W Class-D
• Maximum sound level: 132 dB SPL
• Woofer: 15"
• Low-frequency response: Down to 34 Hz
• Thump12 mode: 140 Hz crossover
• Thump15 mode: 110 Hz crossover
• Thump GO mode: 150 Hz crossover
• Variable mode: Manual crossover adjustment
• Alignment delay: 1.4 ms in all modes
• Inputs: Stereo XLR
• Outputs: Stereo XLR High-Pass and Full-Range
• Input summing: Stereo or mono
• Level control: Variable, from mute to +6 dB
• Phase inversion: Switch
• Front LED: Can be switched off
• Speaker pole mount: M20 (SPM400)
• Height: 470 mm
• Width: 561 mm
• Depth: 584 mm
• Weight: 26 kg