B&C Speakers 15 NDL 76

A B&C 15-inch Designed for Modern Systems: Efficiency, Low Weight, and Reliability

The B&C 15NDL76 fits within the logic of professional bass loudspeakers with neodymium magnets: achieving high power handling and high sensitivity while limiting size and weight. This approach makes it a relevant choice for sound system manufacturers and integrators looking for a 15-inch capable of delivering energetic bass with controlled response and excellent efficiency.

With its stated frequency range of 40 Hz to 2 kHz, it can be integrated into bass/low-mid configurations depending on filtering and loading, and is particularly suited for projects where performance must remain compatible with transport constraints.

Who Is the B&C 15NDL76 For?

This 15-inch bass loudspeaker is intended for speaker manufacturers, repair workshops (OEM replacement/upgrade), as well as DIY audio enthusiasts designing bass-reflex enclosures and speakers. Its sensitivity of 99.5 dB (1W/1m) makes it interesting when aiming to achieve high sound levels without relying solely on amplifier power.

It is also suitable for mobile systems (sound reinforcement, stage monitors focused on the lower spectrum, stacks) thanks to its neodymium magnet and reduced weight, while maintaining 1000W AES power handling and comfortable excursion.

Design and Performance: What Makes the Difference

Neodymium Magnet: High Power, Low Weight

The neodymium motor allows maintaining a high flux density in a lighter assembly. As a result, the 15NDL76 weighs only 4.6 kg, a direct advantage for limiting the total weight of a 15-inch speaker without sacrificing the impact and dynamics needed for professional use.

76 mm Copper Voice Coil: Control and Endurance

The 3.0-inch (76 mm) voice coil with copper wire is a key element for power handling and stability at high levels. This design promotes good displacement control, useful for keeping bass clean when the loudspeaker is driven hard, especially in properly sized bass-reflex enclosures.

Triple Roll Suspension and 7.0 mm Xmax: Solid Bass at High Levels

The 15NDL76 features a triple roll suspension and offers a 7.0 mm Xmax. This combination contributes to safer and more linear excursion in the bass region and helps preserve attack and clarity in the low spectrum when increasing volume.

Treated Exponential Cone: Moisture Resistance and Field Use

Its exponential cone receives a waterproof treatment front and back, a valuable feature for speakers used outdoors, exposed to temperature or humidity variations, or simply for consecutive performances. This treatment aims to maintain consistent behavior over time under realistic usage conditions.

Recommended Loading: 100 Liters Tuned to 47 Hz

To get the best out of this 15-inch driver, the recommended enclosure is 100 liters with a tuning at 47 Hz. This baseline facilitates the design of a coherent bass-reflex cabinet, targeting deep and usable bass while maintaining good efficiency. The provided Thiele/Small parameters (Fs 37 Hz, Qts 0.22) confirm a compatibility with a tuned enclosure and a tight response.

Technical specifications