B&C Speakers 12 HPL 76 4 Ohm

A 12-inch B&C Designed for the Demands of Professional Speakers

In the world of sound reinforcement, the 12-inch format remains a standard for designing speakers capable of handling power, projecting sound, and maintaining clarity. The B&C 12HPL76 Version 4 fits this logic: a speaker intended for speaker enclosures such as PA cabinets (bass-reflex or optimized loading), where sensitivity, durability, and an usable low-midrange for vocals and instruments are sought. This "Version 4" corresponds to an iteration of the model, with a coherent design for integration as a replacement or in new cabinet construction.

Who Is It For and What Are Its Uses?

This speaker is aimed at sound engineers, speaker manufacturers, maintenance workshops, and DIY enthusiasts who want a high-performance 12-inch speaker for a sound reinforcement speaker. Its specified frequency range of 50 to 3500 Hz makes it particularly relevant for the low/mid-low range : perfect for a 2-way speaker (with compression driver and horn) or for a system where the 12-inch driver must retain impact in the low spectrum while staying clean in the midrange.

In 4 ohms, it is also interesting when optimizing the amplifier/speaker combination or when working on setups requiring a specific impedance. For replacement, it is important to check available space (diameters, mounting depth) to ensure direct mechanical compatibility.

Design and Key Points for Integration

76 mm Voice Coil and Power Handling

The 76 mm voice coil diameter supports good thermal endurance, which explains the power handling suited to stage and sound reinforcement demands. The 350 W nominal power and 700 W program power allow working with a comfortable margin, provided a coherent crossover and controlled amplification are used (avoiding prolonged clipping, which is often more damaging than the rated power "on paper").

Efficiency and Presence in the Mix

With a 99 dB sensitivity (1W/1m), this 12-inch driver promotes a feeling of "ease": the level comes up quickly, the attack is crisp, and the speaker retains headroom. This is an advantage for systems where good projection is desired while limiting amplifier strain.

Frequency Range and High-Frequency Crossover

The 50 to 3500 Hz frequency range allows for crossover to a high-frequency section (compression driver + horn) in an appropriate zone, depending on the crossover and directivity desired. In a 2-way speaker, this helps maintain a bass driver that stays clean in the useful midrange while providing a solid foundation in the low spectrum.

Mechanical Compatibility: Dimensions to Respect

For a hassle-free integration, the specified dimensions are crucial: overall diameter 315 mm, mounting diameter 282 mm, and total depth 144 mm. These measurements facilitate verification before installation, whether for replacement in an existing speaker or for designing a new cabinet. The weight of 3.2 kg remains practical for portable speakers while maintaining a design suited for professional use.

Technical specifications

Rackable	No	Type	Speakers
Category	sound reinforcement accessory

Model	B&C 12HPL76 Version 4	Winding height	17.5 mm
Nominal impedance	4 ohms	Flux density	1.15 T
Nominal power	350 Watts	Overall diameter	315 mm
Program continuous power	700 Watts	Basket inner diameter	296 mm
Sensitivity (1W/1m)	99 dB	Mounting diameter	282 mm
Frequency response	50-3500 Hz	Total depth	144 mm
Voice coil diameter	76 mm	Weight	3.2 kg
Voice coil material	aluminum