The Sound Town ZETHUS Series ZETHUS-218S is a high-performance passive subwoofer designed for professional audio applications. This robust subwoofer features two 18" high-power transducers, each equipped with a 4" voice coil and an aluminum demodulating ring, ensuring the massive power handling capacity of 1600W RMS and 3200W program output. The result is deep, rich, and punchy bass that elevates any audio experience. Constructed for the rigors of the road, the ZETHUS-218S's cabinet is built from premium multi-layered birch plywood and shielded by a 14-gauge steel grille with anti-corrosion treatment and a durable textured coating. This tour-grade build makes it resilient enough to endure extensive touring and harsh environments. Integrate seamlessly with ZETHUS-210B or ZETHUS-208BV2 full-range array speakers using the optional ZETHUS-SF1 mounting frame (sold separately) to fit your audio needs. It delivers precise and immersive audio performance suitable for a variety of venues including stages, bars, ballrooms, restaurants, places of worship, and convention centers. The ZETHUS-218S is engineered with both passive and bi-amp modes, allowing for flexible operation and optimal sound customization. In bi-amp mode, each woofer can be driven by its own dedicated amplifier channel, which increases power efficiency, reduces strain on amplifiers, and allows for precise sound tuning. Designed for versatility, the ZETHUS-218S supports both ground and stacked configurations, catering to the most demanding concert and touring applications. Whether you're outfitting a concert hall or setting up a local venue, the ZETHUS-218S subwoofer brings professional-grade bass performance and reliability to every event. FEATURES ZETHUS SERIES ZETHUS-218S PASSIVE DUAL 18“ SUB: The Sound Town ZETHUS-218S passive subwoofer features two 18" high-power transducers, each with a 4" voice coil and an aluminum demodulating ring, delivering a robust 1600W RMS and 3200W program power output. This setup ensures deep, rich, and punchy bass, enhancing your audio experience. TOUR-GRADE CONSTRUCTION: The ZETHUS-218S cabinet is constructed from premium multi-layered birch plywood and protected by a 14-gauge steel grille with anti-corrosion treatment and a tough textured coating, making it durable enough to withstand the rigors of extensive touring. SEAMLESS INTEGRATION: Pair the ZETHUS-218S subwoofer with ZETHUS-210B or ZETHUS-208BV2 full-range array speakers using the ZETHUS-SF1 mounting frame (full-range speakers and mounting frame sold separately) for a cohesive and powerful sound system that provides precise and immersive audio performance for a variety of settings. GROUND STACK DESIGN: The ZETHUS-218S subwoofer accommodates ground and stacked configurations, ideal for various settings including stages, bars, ballrooms, restaurants, places of worship, and convention centers. PASSIVE/BI-AMP MODE: Engineered as a passive subwoofer for remarkable bass output, the ZETHUS-218S also features bi-amp capability. This allows each woofer to operate on its own dedicated amplifier channel, enhancing power efficiency, reducing strain on amplifiers, and enabling precise sound customization for optimal audio tuning. SPECIFICATIONS Specifications Model ZETHUS-218S Active / Passive Passive Frequency Range 27 Hz - 180 Hz Frequency Response 32 Hz - 180 Hz Sensitivity 104 dB SPL Max 135 dB Dispersion Omnidirectional Configuration Dual 18" line array subwoofer Transducer LF: 2 x 18" woofer, HF: -- Voice Coil 4" Magnet 145 oz Impedance Parallel: 4Ω; Bi-Amp: 2 x 8Ω Power Handling 1600W RMS, 3200W PROGRAM, 6400W PEAK Enclosure Material High-grade 100% birch plywood Mounting Hardware M8 inserts for stack frame mountingM20 threading pole mount socket on the side Finish Texture coating Grill & Rigging Component Steel with anti-corrosion coat Amplifier -- Input 4-Pin Speakon Output 4-Pin Speakon Signal Processing -- Control -- Indicator -- Voltage -- Low Frequency Woofer Parts# STLF-18AS Caster Board Model# ZSCB-218S Dimension & Weight Product Width (in.) 45.3" Package Width (in.) 50.8" Product Height (in.) 21.7" Package Height (in.) 28.1" Product Depth (in.) 30.6" Package Depth (in.) 36.2" Product Weight (lb.) 236.0 lbs Package Weight (lb.) 247.5 lbs Warranty/Certifications Manufacturer Warranty 1 Year DOWNLOADS ▶ ZETHUS Series Brochure
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