Martin Audio SX218 - Compact Passive Dual 18-Inch Subwoofer

The SX218 achieves the ultimate in subwoofer performance for the most demanding applications - delivering very high output levels and superb transient performance with minimal distortion it is the perfect partner to WPC, with one subwoofer to every 2 top boxes required.

Features:

• Dual-driver, direct radiating subwoofer
• 2 x 18" (460mm)/4" (100mm) voice coil, long excursion, ferrite magnet, waterproof cone
• Very high output capability
• Tour-grade plywood enclosure with flying inserts

Applications:

• Live sound reinforcement
• Theatre sound
• Corporate AV events

With an operating range of 35Hz-150Hz ± 3dB, it houses dual 18" long-excursion (460mm)/4" (100mm) voice coil drivers with water-resistant cones and triple roll surrounds. Each driver is rated to handle 1000 watts AES, and has a magnet structure and suspension engineered for maximum linear excursion.

The enclosure is constructed from multi-laminate birch ply and coated with hard-wearing textured paint. Eight reflex ports provide a large frontal area to reduce turbulent air noise, and a perforated steel grille protects the drivers from damage.