B&C Speakers 18 PS 76

An 18-inch Speaker Focused on Bass Cabinets, Designed for Stage and DIY Systems

The BetC 18 PS 76 belongs to the family of large-diameter speakers dedicated to sub-bass applications, a widely used standard in sound reinforcement to drive cabinets capable of "pushing air" and supporting the rhythmic foundation. This type of transducer is particularly sought after for replacement (recone or repair) or in a cabinet construction context (DIY project), when the goal is to achieve present and effective bass in both mobile setups and fixed installations.

With a stated frequency response of 40-2000Hz, this model primarily targets solid low-end support while maintaining a usable range that can suit certain configurations where the speaker operates higher (depending on filtering and cabinet design). Its nominal impedance of 8 Ohms also facilitates integration with many amplifiers and common wiring configurations in sound reinforcement.

Who Is It For, and In What Applications?

This 18-inch speaker is aimed at users who want to enhance the bass of a sound system: service providers, bands, DJs, rehearsal rooms, event venues, or sound enthusiasts building/optimizing their cabinets. It is also very suitable as a replacement part when you want to revive a large-format subwoofer, maintaining a simple integration logic (8 Ohms) and power handling adapted for intensive use.

In a live context, it provides the necessary foundation for the kick drum and bass. In DJ setups, it targets physical bass and impact. For fixed installations, it can help reinforce low-frequency coverage, provided it is paired with a cabinet and filtering consistent with its usage parameters.

Design and Performance: What Makes the Difference

Efficiency and Power Handling

The 99dB sensitivity (1W/1m) is a key point for a sub-bass speaker: it helps achieve a high sound level without oversizing the amplification. Regarding power, the 600 Watts nominal and 1200 Watts program ratings indicate the ability to handle dynamic peaks typical of amplified music, while maintaining operating margin depending on limiter settings and filtering.

76mm Copper Voice Coil: Stability and Control

The 76mm diameter voice coil made of copper is an important indicator for subwoofer use: it contributes to thermal management and robustness when the speaker operates for long periods at high levels. The 23.5mm winding height complements this design logic, aiming for consistent behavior under heavy low-frequency demands.

Mechanical Compatibility: An 18-inch Speaker That Fits Cleanly

For replacement or mounting on a baffle, mechanical dimensions are crucial. With a total diameter of 460mm and a mounting diameter of 422mm, the BetC 18 PS 76 is intended for cabinets designed for 18-inch drivers, while requiring careful verification of cutouts and available volume. The total height of 202mm must also be considered to avoid conflicts with internal braces, ports, or rear panels.

Finally, the weight of 10.7Kg reminds us that this is a serious speaker: during transport and assembly, careful mounting and a rigid enclosure are essential to exploit the transducer's potential and limit unwanted vibrations and mechanical noise.

Technical specifications