Sound Barrier MX218DSUB — Dual 18″ Active 1600W Subwoofer System with DSP
MX218DSUB Overview
The Sound Barrier MX218DSUB is a dual 18″ active subwoofer system built for professional PA applications where substantial low-frequency output is required. The cabinet is loaded with two 18″ woofers featuring 3″ voice coils, driven by a 1600W Class D amplifier with an integrated DSP engine offering selectable crossover presets. The onboard amp module provides flexible signal routing and system control, making this unit well suited for touring companies, system integrators, and venue installations.
The self-contained active design eliminates the need for an external amplifier or outboard crossover, streamlining deployment in both fixed and portable PA configurations.
Key Features
- Dual 18″ Woofers with 3″ Voice Coils — Two high-excursion 18″ drivers with 3″ voice coils deliver high-output sub-bass performance across demanding PA applications
- 1600W Class D Amplification — Integrated Class D amplifier provides efficient, high-power output in a self-contained cabinet format
- Onboard DSP with Crossover Presets — Built-in DSP engine with selectable crossover presets allows system-optimized tuning without external processing
- Dual Combination Inputs (XLR / 1/4″) — Left and right combination jacks accept both XLR and 1/4″ connections for flexible source connectivity
- Dual XLR Outputs — Left and right XLR outputs enable signal pass-through to full-range tops or additional system components
- Phase Switch — Onboard phase inversion switch allows alignment with main PA cabinets in varied deployment scenarios
- Full Range / High Pass Filter Selection — Switchable output mode lets the operator configure signal routing to satellite speakers based on system requirements
- Master Volume Control — Dedicated master volume on the amp module provides straightforward level management at the cabinet
Connectivity & I/O
- 2x Combination (XLR / 1/4″) inputs — Left and Right channels
- 2x XLR outputs — Left and Right channels
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