Sound Barrier SBLA285SUB — Dual 18-Inch Passive Line Array Subwoofer
SBLA285SUB Overview
The Sound Barrier SBLA285SUB is a 4800W passive subwoofer engineered for professional line-array concert applications, utilizing a proprietary double Sub Scoop cabinet design that integrates the performance characteristics of both horn-loaded and vented-box enclosures. Each cabinet houses two 18-inch woofers with 125mm voice coils, delivering exceptionally high levels of clean, punchy bass output from a compact enclosure footprint. The horn-loaded behavior across the majority of the operating range transitions to vented-box principles in the lowest octave, extending low-end performance without the time delay or weight penalties associated with conventional horn designs. This cabinet is purpose-built for touring companies, system integrators, and large-venue installations requiring scalable, high-output subwoofer solutions.
The reverse woofer orientation optimizes rear chamber volume and reduces the horn flare rate, contributing to extended low-frequency output and improved efficiency within a manageable cabinet size.
Key Features
- 4800W Power Handling — High-capacity passive design suited for use with professional touring-grade amplification
- Double Sub Scoop Cabinet Construction — Proprietary enclosure design combining horn-loaded and vented-box principles for maximum output efficiency
- Dual 18-Inch Woofers with 125mm Voice Coils — Large-format drivers deliver the headroom and excursion required for concert-level SPL
- Horn-Loaded Behavior Across Primary Range — Provides high sensitivity and output efficiency without the time delay issues of conventional horn-loaded subwoofers
- Vented-Box Low-Octave Extension — Vented-box principles engage in the lowest octave to produce clean, extended bass reproduction
- Reverse Woofer Orientation — Optimizes rear chamber volume and decreases horn flare rate for improved low-end performance
- Line-Array System Compatibility — Designed to integrate with professional line-array concert systems for scalable subwoofer deployment
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