ZETHUS-A18SPW | 18" 1600W Powered Line Array Subwoofer with Class-D Amplifier, DSP Presets, Birch Plywood, Black

The Sound Town ZETHUS-A18SPW is an 18" high-output powered line array subwoofer engineered to deliver deep, impactful low-frequency reinforcement. It features a heavy-duty 18" transducer with a high-temperature 4" voice coil, powered by an efficient 1600W integrated Class-D amplifier. The integrated DSP includes five factory presets, allowing quick frequency curve optimization options for different venues and system configurations.

The ZETHUS-A18SPW features a rugged, internally braced birch plywood enclosure with a durable textured finish that minimizes resonance and unwanted vibration. It is equipped with professional PowerCon connectors for secure power linking, along with XLR/Combo inputs and dual Ethernet ports that support system monitoring and multi-unit linking for scalable setups.

Serving as a low-frequency foundation for ZETHUS-A Series line array systems, the ZETHUS-A18SPW supports flexible system configurations. For ZETHUS-A26PW and ZETHUS-A28PW, the integrated M20 threaded socket enables connection with the ZETHUS-A26FF or ZETHUS-A28FF frames (sold separately) using the STSD-MM1449B pole system for satellite support. For ZETHUS-A210PW, the subwoofer can be directly stacked for ground-stacked and flown array setups using the ZETHUS-A210FF flying frame (sold separately).

• ZETHUS-A18SPW HIGH-OUTPUT POWERED SUBWOOFER: Features a premium 18" woofer with a 4" voice coil, powered by an efficient Class-D amplifier delivering 800W continuous / 1600W peak output for deep, impactful low-frequency performance.
• SMART DSP TUNING: Integrated DSP with five factory EQ presets allows quick optimization for different venues and system configurations, delivering consistent, professional-grade low-end response without complex manual tuning.
• CONTROL & LINKING CONNECTIVITY: Dual Ethernet ports enable multi-unit linking and system monitoring. XLR/Combo inputs and PowerCon connectors ensure secure, reliable connections and streamlined system integration.
• FLEXIBLE SYSTEM INTEGRATION: Designed as a foundation subwoofer for ZETHUS-A Series line array systems. Provides consistent bass reinforcement for systems utilizing ZETHUS-A26PW or ZETHUS-A28PW loudspeakers. When used with ZETHUS-A210PW loudspeakers, the subwoofer supports direct integration for both ground-stacked and flown array configurations.
• TOUR-GRADE CONSTRUCTION: Built from reinforced birch plywood with a rugged textured finish and heavy-duty grille, reducing resonance and protecting internal components for reliable performance in demanding environments.

Specifications

Dimension & Weight

Warranty/Certifications

ZETHUS Series Brochure