B&C Speakers 12FCX76

A B&C Coaxial Speaker Designed for High-Efficiency Compact Loudspeakers

The 12FCX76 follows B&C's "coaxial" approach: combining a woofer/midrange driver and a high-frequency transducer on the same axis to achieve improved phase coherence and consistent dispersion. This design is particularly appreciated when aiming for a compact, powerful, and intelligible loudspeaker capable of evenly covering an audience while maintaining a single point source. With its ferrite magnet, robust motor structure, and 12-inch (31 cm) format, this model clearly targets professional applications where reliability and consistency are paramount.

Intended Uses and Loudspeaker Projects

The B&C 12FCX76 is aimed at integrators, loudspeaker manufacturers, technicians, and DIY enthusiasts seeking a coaxial driver capable of serving as the core of a versatile sound reinforcement loudspeaker. It is well suited for stage monitors, high-power satellite speakers, compact systems for mobile performances, or certain fixed installations (bars, halls, places of worship, multipurpose venues) where clean coverage and good intelligibility are desired.

Thanks to its high sensitivity, it delivers significant sound levels without requiring excessive amplification power. Having two separate sections (LF and HF, each at 8 Ohms) facilitates bi-amplification and optimization via processors (crossover, equalization, limiters), especially to achieve the best compromise between impact in the low-midrange and precision in the upper spectrum.

Design and Key Features: Coherence, Dispersion, and Durability

Coaxial Architecture and Controlled Coverage

The coaxial principle places the HF section at the center of the LF cone: the result is more uniform dispersion and a more natural transition between frequency ranges, with a highly sought-after "point source" sensation in sound reinforcement. The 80-degree concentric coverage helps maintain coherent projection, useful both for front-of-house and monitoring, limiting tonal variations when moving within the listening area.

3-Inch HF Driver and Titanium Diaphragm

The high-frequency section features a 76 mm voice coil and a titanium diaphragm, a common professional solution to achieve detailed response and good mechanical durability when driving the speaker at high levels. The specified HF sensitivity of 106 dB (1 W/1 m) emphasizes efficiency, an asset for preserving dynamics and clarity on vocals and instrument attacks.

12-Inch LF/Midrange Section: Control and Endurance

The 12-inch driver uses a 76 mm copper wire LF voice coil, paired with a dual-roll suspension and a 6.5 mm Xmax to handle excursions while maintaining stable behavior. The exponential cone benefits from a waterproof treatment front and back, advantageous for intensive use (transport, humidity variations, stage constraints) and to maintain consistent performance over time.

Technical specifications

Rackable	No	Type	Speakers
Category	sound reinforcement accessory

Model	B&C 12FCX76	Magnet	ferrite
Coverage	80-degree concentric	LF suspension	dual-roll
AES Power	350 W (LF) + 80 W (HF)	Cone	exponential, waterproof treatment front and back
Impedance	8 Ohms (LF) + 8 Ohms (HF)	Fs (LF)	47 Hz
LF Sensitivity	98 dB (1 W/1 m)	Qts	0.34
HF Sensitivity	106 dB (1 W/1 m)	Xmax	6.5 mm
Frequency range	47 Hz - 18 kHz	Total diameter	315 mm
LF voice coil	76 mm, copper wire	Height	169 mm
HF	76 mm voice coil, titanium diaphragm	Weight	8 kg