B&C Speakers 6NDL38

A 6-inch Neodymium Driver Designed for Compact Systems

The B&C 6NDL38 Medium fits the spirit of modern sound reinforcement drivers: high power handling, controlled size, and reduced weight thanks to a neodymium magnet. This type of 6-inch (17 cm) driver is particularly sought after for building high-performance speakers that are easy to transport and capable of maintaining clarity at high levels, while allowing simple integration into reasonable enclosure volumes.

Who Is This Speaker For and What Are Its Uses?

This model is an excellent choice for integrators, manufacturers, and demanding DIYers who want to build a compact mid-bass speaker, a small sound reinforcement top, or a midrange section in a multi-way system. With its specified response from 70 Hz to 6 kHz, it naturally fits where impact, definition, and good mechanical durability are expected, especially when paired with a compression driver or tweeter in a 2-way or 3-way configuration.

Its sensitivity of 92 dB (1 W / 1 m) and ability to handle 300 W AES make it a serious candidate for applications where headroom is desired without multiplying transducers. In sound reinforcement contexts, this translates to more reliable behavior during prolonged use and better margin before mechanical or thermal saturation, provided the enclosure design and crossover are appropriate.

Design, Components, and Key Listening Points

Neodymium Motor: Performance and Mobility

The neodymium magnet allows maintaining a high level of performance while limiting total weight to 1.2 kg. This is a tangible advantage for portable speakers, compact monitors, or any setup where an optimized power-to-weight ratio is sought without compromising the specified power handling.

38 mm Voice Coil: Stability and Endurance

The 38 mm voice coil with aluminum wire is sized to withstand the energy demands of sound reinforcement use. This design aims for a good balance between heat dissipation, control, and dynamics, helping to maintain consistent output as levels increase, especially in the mid-bass region where excursion and current demands are higher.

Mechanical Behavior: Excursion and Suspension

With a Xmax of 6.0 mm, a compliant roll surround, and a single spider, the 6NDL38 Medium is geared towards energetic and controlled reproduction in the lower part of its useful spectrum. The Fs at 72 Hz and Qts at 0.42 support efficient integration in a tuned enclosure, consistent with the recommended loading.

Treated Exponential Cone: Versatile Use

The exponential cone with water-resistant treatment on the front provides notable robustness for sound reinforcement applications and speaker manufacturing intended for mobile use, where reliability under varied operating conditions is essential. The specified bandwidth up to 6 kHz allows for comfortable crossover design depending on directivity and filtering choices.

Technical specifications