$1,799.99 $2,564.99

The Sound Town ZETHUS Series ZETHUS-218S is a high-performance line array passive subwoofer with two 18“ long-excursion drivers. It features a rectangular design for ground/stacking use in the most demanding touring applications.

With two 18" high power transducers and one 4" voice coil built in, the ZETHUS-218S subwoofer handles 1600W RMS / 3200W peak power output, and delivers deep, rich and punchy bass. An aluminum demodulating ring is employed to further reduce distortion. When integrated with the ZETHUS-210B or ZETHUS-208V2 full range array speakers (ZETHUS-SF1 mounting frame is required and available separately), the line array speaker system delivers accurate and immersive sound performance at earth shaking volume. 

Housed in a top-quality multi-layer birch plywood enclosure with an anti-corrosion 14-gauge steel grille and a durable textured coating, the ZETHUS-218S is built to last and withstand a lifetime hard tour use. For increased versatility, the ZETHUS-218S subwoofer can be stacked vertically with the ZETHUS-SF1 mounting frame for ground/stacking use in the most demanding touring or concert applications, perfect for stages, bars, ballrooms, restaurants, houses of worship, convention centers and more.

  • With two 18" high power transducers and one 4" voice coil built in, the ZETHUS-218S subwoofer handles 1600W RMS / 3200W peak power output, and delivers deep, rich and punchy bass. An aluminum demodulating ring is employed to further reduce distortion 
  • Housed in a top-quality multi-layer birch plywood enclosure with an anti-corrosion 14-gauge steel grille and a durable textured coating, the ZETHUS-218S is built to last and withstand a lifetime hard tour use
  • When integrated with the ZETHUS-210B or ZETHUS-208V2 full range array speakers (ZETHUS-SF1 mounting frame is required and available separately), the line array speaker system delivers accurate and immersive sound performance at earth shaking volume 
  • For increased versatility, the ZETHUS-218S subwoofer is designed for ground/stacking use in the most demanding touring or concert applications, perfect for stages, bars, ballrooms, restaurants, houses of worship, convention centers and more 

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
Power Handling 1600W RMS, 3200W PROGRAM, 6400W PEAK
Enclosure Material High-grade 100% birch plywood
Mounting Hardware M8 inserts for stack frame mounting
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