Mackie Thump 18S V4 18" 1400W Active PA Subwoofer

Mackie Thump 18S V4 18-Inch Active PA Subwoofer

The Mackie Thump 18S V4, also known as the Thump18Sv4, is an 18-inch active PA subwoofer for mobile DJs, live performers and venues building a system with dedicated bass reinforcement. Its 1400W peak Class-D amplifier powers an 18-inch woofer, delivering up to 132dB peak SPL and a frequency response extending to 33Hz at -3dB.

Add Weight to Kick Drums and Basslines

When music is central to your events, the lowest frequencies play a big part in how the performance feels. Adding a powered subwoofer gives kick drums, bass guitar and electronic bass their own dedicated speaker, supporting your full-range cabinets with the foundation needed for dance-floor playback.

For wedding receptions, parties and live music, think about the balance of the complete system. Your main speakers reproduce vocals, instruments and higher-frequency detail, while the subwoofer supports the bass. Sending a high-pass signal to suitable tops reduces the deep-bass content they are asked to reproduce.

Match the Crossover to Your Main Speakers

The Thump 18S V4 includes crossover presets for Mackie Thump 12 V4, Thump 15 V4 and Thump GO loudspeakers. These provide a convenient starting point when assembling a matched Mackie PA system. Variable mode lets you adjust the crossover manually when using other compatible full-range speakers.

Choosing an appropriate crossover helps the subwoofer and tops work together around the point where their frequency ranges meet. During soundcheck, listen to familiar music from the audience area and adjust the balance so the bass supports the mix without dominating vocals or announcements.

Straightforward Connections for DJ Controllers and Mixers

Stereo XLR inputs accept a suitable line-level feed from your DJ controller or mixing desk. Connect the high-pass outputs to your active main speakers, or use the separate full-range outputs when passing audio onwards to another subwoofer. Built-in amplification removes the need for an external power amplifier.

This makes the Thump 18S V4 a practical addition to an existing active PA. Plan your signal routing, cable lengths and mains connections before your first booking, then keep the same connection routine wherever possible to make venue setup easier.

Control Your Bass Level at Each Venue

The level control lets you balance the subwoofer against your main speakers, while the phase-invert switch provides an additional adjustment when checking how the cabinets combine. Room layout, speaker position and the listening area all affect the result, so allow time to check your system before guests arrive.

Plan Your Transport and Speaker Placement

At 31.9kg, the Thump 18S V4 is a substantial cabinet. Built-in handles assist with handling, but it is worth checking vehicle access, storage space and your usual loading route before choosing an 18-inch subwoofer. If you regularly work alone or negotiate stairs, include those practical requirements in your buying decision.

An M20 threaded socket accommodates a compatible speaker pole, allowing a suitable full-range speaker to be positioned above the floor-standing subwoofer.

Build a PA Around the Events You Play

Choose the Mackie Thump 18S V4 powered subwoofer when you want an 18-inch bass cabinet with flexible connections and crossover settings for a full-range PA system. Match your purchase to your music, venue requirements and transport arrangements. Contact DJ Superstore for help choosing compatible speakers, cables and mounting accessories.

Who Is the Mackie Thump 18S V4 For?

• Mobile DJs: Add a dedicated bass cabinet to an active speaker system.
• Wedding and party entertainers: Build a PA for dance-floor music and event playback.
• Live performers: Reinforce bass instruments, electronic drums and backing tracks.
• Venues: Extend a suitable full-range PA for music-led events.
• Mackie Thump owners: Assemble a system using the available speaker-matching presets.

Compare the Mackie Thump V4 Range

Choose full-range speakers for your main sound, then add a dedicated subwoofer to support the lowest frequencies.

• Mackie Thump 12 V4 12-Inch Active PA Speaker: A full-range speaker option for music, vocals and event sound.
• Mackie Thump 15 V4 15-Inch Active PA Speaker: A 15-inch full-range cabinet to partner with a dedicated subwoofer.
• Mackie Thump 15S V4 15-Inch Active PA Subwoofer: A smaller, lighter alternative to compare if transport and storage are priorities.

The Thump 18S V4 handles bass reinforcement and should be used alongside suitable full-range speakers. Choose your combination around the music you play, the spaces you cover and how you transport your equipment.

Explore active speaker packages for complete PA setup options.

Complete Your Mackie Thump 18S V4 Setup

Build a complete system with compatible full-range speakers, suitable signal cables and the right transport accessories.

• Active PA speakers: Add suitable tops to reproduce vocals, instruments and the rest of your music.
• Balanced XLR cables: Connect your controller or mixer to the subwoofer, then feed your active speakers from its outputs.
• Speaker pole: Consider the separately available Mackie SPM400 for positioning a suitable speaker above the subwoofer.
• Protective cover: Choose a cover specifically designed to fit the Thump 18S V4.

Explore active speaker packages for complete PA setup options, or contact DJ Superstore for advice on matching your equipment.