Martin Audio Blackline F12 Plus

Blackline+ systems are synonymous with exceptional sound quality and reliability and have become the benchmark for premium live music venues, nightclubs and installations worldwide.

All low frequency drivers used in the two-way systems now benefit from the addition of aluminium demodulation rings to minimise the variation in voice coil inductance as the coil moves in the gap. The result is improved midrange clarity and reduced intermodulation distortion at high excursions, ensuring that the sound balance and quality is maintained even at high levels.

In the development of the Blackline+ Series, special attention has also been given to matching the directivity of the low frequency drivers to the HF horns in the crossover region. This has been achieved by careful choice of LF cone profiles, together with improvements in the crossover design.

Blackline+ – superior by design.


 2way passive 12" compact PA/monitor system


Compact two-way passive system

The Blackline F12+ is a high power, compact two-way system with a new, vented-chassis, 12” (300mm) LF driver and a new 1” (25mm) exit compression driver mounted on a rotatable 80° x 50° constant directivity HF horn. The LF driver has a tough, water resistant cone and features a high BL motor with a flat-wire copper coil and an aluminium demodulating ring. This reduces intermodulation distortion and improves midrange performance when driven hard. Increased excursion is available by virtue of a triple roll surround and deep motor structure. The directivity of the LF driver has been matched to the HF horn in the crossover region by improved crossover design and cone profile optimisation, also the new HF compression driver utilises an ultra-lightweight Kapton diaphragm for extended high frequency response.

A Martin Audio M3+ or DX1.5 Electronic Controller is available to provide F12+/subwoofer crossover and limiter facilities.


Compact two-way passive system

User rotatable 80° x 50° horn

Top hat fitting for speaker stand mounting

Five year limited warranty


Live club performance

Floor monitor

Club installs

AV presentations


TYPE Compact, two-way passive


-10dB @ 55Hz

DRIVERS 12” (300mm)/2.5” (63.5mm) voice coil LF driver

1” (25mm) exit HF compression driver

RATED POWER (2) 300W AES, 1200W peak



MAXIMUM SPL (9) 122dB continuous, 128dB peak


DISPERSION (-6dB) 80 ° horizontal, 50 ° vertical

CROSSOVER 2.2 kHz passive

ENCLOSURE 38 litre, multi-laminate birch ply

FINISH Textured black paint

PROTECTIVE GRILLE Black perforated steel

CONNECTORS 2 x Neutrik NL4

PIN CONNECTIONS FR+,- : 1+,1- , Link thro’: 2+,2-

FITTINGS 10 x M8, 4 x M8 threaded inserts

1 x mounting pole socket

1 x pocket handle

DIMENSIONS (W) 398mm x (H) 571mm x (D) 365mm

(W) 15.6ins x (H) 22.5ins x (D) 14.3ins

WEIGHT 21kg (46lbs)