The ZETHUS-218SPW is a powered dual 18" line array subwoofer designed for high-output low-frequency reinforcement in professional sound systems. It features dual 18" woofers with 4" voice coils and a built-in 2-channel Class-D 3200W amplifier for strong, controlled bass performance. Integrated DSP provides system tuning flexibility with a switchable low-pass filter (40 Hz–180 Hz), dynamic bass enhancement, RMS dynamic processing, 2nd-order IIR filtering, phase control, and four EQ presets. Connectivity includes (2) XLR-1/4” combo inputs, (2) XLR thru outputs, and (2) XLR 100 Hz high-pass outputs for integration with full-range systems.
Constructed from all-birch plywood, the enclosure minimizes resonance and unwanted vibration even at high operating levels. Reinforced hardware and rugged cabinet design support touring and permanent installation use, while multiple side handles improve portability. Dual M20 pole mounting sockets provide flexible horizontal or vertical mounting configurations for varied system deployment needs.
The ZETHUS-218SPW integrates with ZETHUS-210BPW full-range powered line array speakers for scalable system configurations. Ground-stacked setups can be deployed using the optional ZETHUS-SF1 mounting frame, while the optional ZSCB-218S caster board (sold separately) supports mobility and transport. Suitable for live sound venues, clubs, houses of worship, auditoriums, and installed sound environments.
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