Martin Audio S218+ High Power Vented Sub-bass System with 2x 18" Voice Coil Drivers, 35Hz to 150Hz Frequency, 105dB Sensitivity, 4Ohms Impedance, 6000W Peak Power

The Martin Audio S218+ High Power Vented Sub-bass System has been designed to be used with large scale Blackline F12+ and F15+ systems to extend and increase the total low frequency output power. It can also be used as the low frequency section of a bi-amped or tri-amped H3+ system. It provides good bass punch with extended sub-bass output from two new, long-excursion, 18" (457.2mm)/4" (101.6mm) voice coil drivers with water resistant cones and triple roll surrounds.

The birch ply cabinet features large area porting to reduce air noise and is fitted with substantial handles and four 4" (100mm) castors for easy deployment. Lid clips for an optional lid are also fitted as standard. It must be electronically crossed over with the M3+, DX1.5 or equivalent Electronic Controller.