Mackie Thump 15S V4 15-Inch Active PA Subwoofer
The Mackie Thump 15S V4, also known as the Thump15Sv4, is a 15-inch active PA subwoofer for DJs, musicians and venues adding dedicated bass to a full-range speaker system. Its 1400W peak Class-D amplifier and 15-inch woofer deliver up to 132dB peak SPL, giving kick drums, basslines and electronic music a more substantial foundation.
Why Add a Subwoofer to Your PA?
If your existing speakers handle vocals and music well but you want more weight on the dance floor, a dedicated subwoofer is a practical next step. It handles the low-frequency part of your mix, complementing the full-range speakers that reproduce vocals, instruments and higher-frequency detail. For wedding DJs, party hosts and live performers, this lets you build a system around the sound your events require.
Crossover Settings for Your Mackie Speakers
Matching a subwoofer to your main speakers is about how they work together. The Thump 15S V4 includes high-pass presets for Thump 12 V4, Thump 15 V4 and Thump GO speakers, plus a Variable mode for manually selecting the crossover when using other suitable PA loudspeakers.
Connect your powered speakers to the subwoofer's high-pass outputs to filter the bass sent to them. This divides the frequency range between the subwoofer and your main speakers, reducing the deep-bass demands placed on the tops. It is particularly useful when upgrading an existing pair of active speakers into a complete DJ PA system.
Connect a DJ Controller or Mixer
Stereo XLR inputs accept audio from a suitable DJ controller, mixing desk or other line-level source. Separate high-pass outputs feed your main speakers, while full-range outputs provide a connection for expanding the system with another subwoofer. The built-in amplifier means no separate power amplifier is required.
For a mobile DJ starting with two powered speakers, this provides a straightforward upgrade path: add the subwoofer, route your audio through it and set the crossover to suit your speakers. Plan the signal cables and mains connections before your first event so setup at the venue is familiar.
Balance the Bass for Each Event
A dedicated level control lets you balance the subwoofer against your main speakers. Use soundcheck to find a level that supports the music without overwhelming vocals or announcements. The phase-invert switch gives you another adjustment when checking how the subwoofer and tops combine at the crossover.
A Practical Choice for Mobile Setups
The Thump 15S V4 weighs 26kg and includes carrying handles. Before buying, consider your vehicle space, storage and loading arrangements as well as the sound you need. For a tidy setup, its M20 pole socket accepts a compatible speaker pole, allowing a suitable full-range cabinet to sit above the subwoofer.
Choose the Mackie Thump 15S V4 powered subwoofer when you want to extend a compatible PA system with dedicated low-frequency reinforcement and accessible crossover controls. Contact DJ Superstore for help matching your subwoofer, speakers and accessories to the events you play.