B&C Speakers 12 HPL 64

A 12-inch Driver Designed for Modern Sound Reinforcement Demands

The B&C 12HPL64 fits the spirit of professional drivers intended for PA speakers where efficiency, power handling, and lightweight are sought. With its neodymium magnet and performance-oriented design choices, it responds particularly well to the constraints of mobile systems (portable speakers, monitors, compact stacks) without sacrificing low-mid impact or clarity.

Who Is It For and What Are Its Uses?

This transducer targets speaker manufacturers, integrators, and demanding DIY enthusiasts who want to build a speaker capable of playing loud and clean. Its "low/mid" positioning makes it an excellent choice as a 12-inch front driver for a full-range speaker supported by a high-frequency driver, or as a dedicated low-midrange driver in a 3-way configuration. Thanks to its high sensitivity, it is also suitable for projects aiming to maximize sound level with reasonable amplification.

Design and Performance: Efficiency, Control, and Easy Integration

A Neodymium Motor to Reduce Weight Without Losing Dynamics

The neodymium magnet directly contributes to the compactness and low weight of the speaker while promoting a lively response and good "punch" feel. This is a tangible advantage for speakers intended to be frequently moved or to optimize the total weight of a system.

64 mm Voice Coil: Power Handling and Thermal Stability

The B&C 12HPL64 is rated at 400 W AES at 8 Ohms. Its 64 mm voice coil with aluminum wire aims to balance moving mass and heat dissipation to maintain a responsive response while enduring the demands of sustained PA use.

Triple Roll Suspension and Exponential Cone: Low-Midrange Articulation

The triple roll suspension is designed to support excursion while maintaining good centering and a consistent response. Combined with an exponential cone and a single spider, it contributes to clear reproduction in the critical range where tom attacks, vocal body, and bass impact occur, while preserving useful extension into the low frequencies.

Recommended Tuning: A Clear Basis for Enclosure Design

To facilitate integration, a recommended enclosure is provided: 60 liters with a 60 Hz tuning. This guideline offers a solid starting point for designing a bass-reflex enclosure oriented toward efficiency, to be adjusted according to goals (throw, low-frequency extension, enclosure size) and the planned crossover.

Technical specifications

Rackable	No	Type	Speakers
Category	sound reinforcement accessory

Model	B&C 12HPL64	Cone	exponential
Nominal diameter	12 inches (31 cm)	Spider	single
Power	400 W AES	Total diameter	315 mm
Nominal impedance	8 Ohms	Height	144 mm
Sensitivity	100 dB (1 W / 1 m)	Weight	2.1 kg
Frequency response	50 Hz to 4 kHz	Recommended volume	60 liters
Voice coil diameter	2.5 inches (64 mm)	Recommended tuning	60 Hz
Voice coil wire	aluminum	Fs	52 Hz
Magnet	neodymium	Qts	0.32
Suspension	triple roll	Xmax	4.0 mm