Martin Audio Blackline F15+ 15″ Two-Way Passive Loudspeaker

The Martin Audio F15+ is a high-performance, wide-bandwidth passive loudspeaker designed for demanding live sound and installation environments. Featuring a 15″ (380 mm) LF driver with a 3″ voice coil and a 1.4″ (35 mm) exit compression driver, it delivers powerful, full-range audio with exceptional clarity and projection. The rotatable 80° × 50° constant directivity horn ensures consistent coverage whether mounted vertically or horizontally, while the multi-angle birch ply enclosure allows for use as a main PA speaker or high-output floor monitor.

With 400 W AES / 1,600 W peak power handling, 8 Ω nominal impedance, and up to 132 dB peak SPL, the F15+ is ideal for club installs, live stages, and mobile rigs. It includes a top-hat fitting for tripod mounting, 12 M8 inserts for rigging, and dual Neutrik NL4 connectors for flexible wiring. Pair it with the Blackline S18+ subwoofer and a Martin Audio M3+ or DX1.5 controller for optimized crossover and limiter performance.

Key Features

• 15″ LF driver with 3″ voice coil and neodymium magnet for deep, punchy bass

• 1.4″ HF compression driver with titanium diaphragm for crisp, extended highs

• 80° × 50° rotatable horn for flexible coverage in any orientation

• 400 W AES / 1,600 W peak power handling; 8 Ω impedance

• Frequency response: 55 Hz – 18 kHz (±3 dB); usable down to 45 Hz

• Max SPL: 126 dB continuous / 132 dB peak

• Multi-angle birch ply cabinet with textured black paint and steel grille

• Top-hat mount, 12 × M8 inserts, and dual NL4 connectors for versatile deployment

• Dimensions: 471 × 690 × 443 mm; Weight: 30.5 kg