Mackie Thump18Sv4 active PA subwoofer (Thump18Sv4)

Features
18" woofer
Max. 132 dB SPL
Bass reproduction down to 25 Hz
High-pass outputs for easy tweeter adaptation
Integrated handles, M20 thread for speaker stand

Measurements
Product depth (mm): 630
Product height (mm): 605
Product weight (g): 31900
Product width (mm): 541

The Mackie Thump18Sv4 is a powerful active subwoofer that delivers strong bass reproduction to a PA system and reaches extremely low frequencies. It is suitable for situations where extra rumble and depth are needed in the sound, both at gigs and events. The subwoofer reproduces bass frequencies down to 25 Hz and utilizes a 1400 W Class D amplifier, producing up to 132 dB maximum sound pressure. Stereo XLR inputs as well as high pass and full range outputs make integration with main speakers easy and quick.

Powerful 18” bass driver and deep reproduction

The Thump18Sv4 features an 18-inch high-performance bass driver that extends down to a 33 Hz low frequency. This allows for powerful and balanced bass reproduction in various use cases. The subwoofer is designed to withstand active gig use, and its construction supports reliable operation. Integrated carrying handles make transport and installation easier. The whole package combines performance and practicality.

Adjustable crossover frequencies for different speakers

High pass modes allow the bass reproduction to be tailored to different main speakers. You can choose from preset modes for Thump12v4 (140 Hz), Thump15v4 (110 Hz), or Thump GO (150 Hz). Additionally, there is a variable mode where the crossover frequency can be set manually. All modes include a 1.4 ms delay compensation, which helps keep the sound coherent. This facilitates optimizing the system in different configurations.

Versatile connections and controls

The subwoofer has stereo XLR inputs that can be connected to, for example, a DJ controller or mixer. High-pass XLR outputs enable direct connection to main speakers, while full-range outputs allow chaining to another subwoofer. The unit supports both stereo and mono summing for various needs. An adjustable level control from mute to +6 dB offers flexibility in sound adjustment. Additionally, phase inversion and front panel LED control support use in different situations.

Durable construction and mounting options

The Thump18Sv4 is built to withstand gig use, with a design intended for long-lasting performance. An integrated M20 thread allows for speaker pole use with main speakers. The construction is sturdy and suitable for various installations. Carrying handles make transport smooth. The subwoofer fits into a variety of PA system setups.

Features

• 1400 W Class D amplifier
• Maximum sound pressure 132 dB
• 18” bass driver
• Bass reproduction down to 25 Hz
• Low frequency 33 Hz
• High pass modes: Thump12v4 (140 Hz), Thump15v4 (110 Hz), Thump GO (150 Hz), Variable
• 1.4 ms delay compensation in all modes
• Stereo XLR inputs
• Stereo XLR high-pass outputs
• Stereo XLR full-range outputs
• Phase inversion
• LED indicator on/off
• Stereo/mono summing
• Adjustable level (Mute – +6 dB)
• Integrated M20 thread for speaker pole
• Integrated carrying handles
• Dimensions: 541 x 630 x 605 mm
• Weight: 31.9 kg

Package contents

• Mackie Thump18Sv4 active subwoofer