Martin Audio Blackline X218 Dual 18" Passive Subwoofer

The Blackline X218 is the largest sub in the portable Blackline X range, carrying two 18" (460mm) long-excursion drivers in a reflex plywood enclosure. It is built for bands, DJs and event systems that need serious low-end level and extension from a ground-stacked pair rather than a single cabinet.

It handles 1600W AES (6400W peak) at 4 ohms and reaches 141dB peak (half space), with response down to 33Hz (-10dB). Two NL4 connectors carry a dual-channel wiring scheme with link-through, so several cabinets chain cleanly in a stack for larger rigs.