Mackie Thump 18Sv4

The Mackie Thump18Sv4 is an active 18" PA subwoofer for users who need even more depth and sound pressure in their sound reinforcement system. Equipped with an 18" high-performance woofer and a powerful 1,400-watt Class-D amplifier, this model delivers a robust bass foundation for live sound reinforcement, DJ set-ups, club applications and events. With a frequency range of 28 Hz to 160 Hz (-10 dB) and a maximum sound pressure level of 132 dB SPL, the Thump18Sv4 is designed for powerful yet controlled low-frequency reproduction.

For optimal integration into various PA set-ups, the subwoofer features a switchable crossover frequency with presets for 140 Hz on the Thump12v4, 110 Hz on the Thump15v4 and 150 Hz on the Thump GO. In addition, the crossover frequency can be adjusted continuously, allowing other top units to be connected appropriately. A phase reversal switch and a mono/stereo switch expand the customisation options and help to ensure the entire system is neatly balanced.

In terms of connectivity, the Mackie Thump18Sv4 is designed for professional and practical use. It features two balanced XLR inputs and four balanced XLR outputs, comprising two full-range and two high-pass outputs. This allows the subwoofer to be flexibly integrated into various signal paths. An input gain control and an overload LED are provided for easy day-to-day operation. To protect the electronics and speaker drivers, peak and RMS limiters as well as a thermal protection circuit are also integrated, ensuring reliable operation even at higher levels.

Despite its power, the Thump18Sv4 remains designed for practical use. Integrated carrying handles make transport easier, the front LED can be switched off if required, and the M20 thread allows an optional SPM400 spacer bar to be used for mounting a top-end unit. This makes the Mackie Thump18Sv4 a compelling choice for anyone looking for a powerful active subwoofer offering high practicality, flexible system customisation and punchy bass performance.