The Martin Audio SX218 is a high-output dual 18-inch subwoofer engineered for touring and fixed installations that demand deep, controlled low-frequency performance. This listing is for one subwoofer fitted with two long-excursion 18-inch drivers featuring 4-inch voice coils, ferrite magnets and waterproof cones for reliable operation in challenging environments. A direct-radiating design delivers authoritative, musical bass with impressive punch and definition, reaching a maximum output of up to 144 dB.
Built to withstand life on the road, the tour-grade plywood enclosure includes integrated flying inserts for flexible deployment and secure rigging options. Its dual 8-ohm configuration provides versatile system design choices, making it straightforward to power from a range of professional amplifiers. Whether used as a single unit, in pairs, or in larger ground-stacked or flown arrays, the SX218 offers excellent scalability and consistent, even coverage.
Ideal for live sound, festivals, clubs, theatres and high-impact installations, the SX218 brings depth and headroom to modern PA systems while maintaining tight, musical low end.
Includes
- Martin Audio SX218 2 x 18″ Subwoofer 144 dB 2 x 8 Ohm
STAGE22.3.100.900