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High-powered sub with dual 18" drivers and 4" voice coil. Favorites with discerning contractors and engineers, these speakers feature Uni-Phase design and matching sound - even between different models - for easy system setup and tuning.
Dual woofers can be switched for discrete drive (IS1215 and IS1218).
Twelve 10mm-screw suspension points (M10) provided for flexible rigging.
Durable black or white finish (can be painted to match any interior).
Optional matching array frame available (for IS1118 and 1218 only).
Parallel-wired Neutrik NL4 and barrier strip connectors.