Martin Audio S15+ 15" Compact Vented Sub-Bass System, 45Hz to 120Hz Frequency Response, 101dB Sensitivity, 8 Ohms Impedance, 3000W Peak Power

The Martin Audio S15+ Compact Vented Sub-Bass System has been designed to be used with Blackline F12+ or F15+ full-range systems to extend and increase the total low frequency output power. It provides good bass punch from a new, long-excursion, 15" (381mm)/4" (101.6mm) voice coil driver with a water resistant cone and triple roll surround.

It features substantial birch ply construction and large area porting to reduce air noise. It can operate in passive add-on mode using its internal switchable passive network or may be used actively with an M3+ or DX1.5 controller. In the active configuration, the controller will provide crossover, EQ and limiter functions for the S15+ and F10+/F12+ combination. It is provided with a top hat fitting that can be used to pole mount an F10+ or F12+ above the enclosure.