B&C Speakers 18DS115

An 18" B&C Tailored for Modern Subwoofer Enclosures

The B&C 18DS115 fits within the logic of next-generation 18" speakers: achieving a high bass level, strong mechanical durability, and excellent clarity, while remaining compatible with the most commonly used enclosure architectures in sound reinforcement. Its 18" (46 cm) size makes it a natural choice for subwoofer enclosures intended for live performances, fixed installations, or sound systems requiring bass that is both powerful and controlled.

With a rated sensitivity of 98 dB (1W/1m), it targets efficiency in real-world conditions, especially when the speaker is used in a suitable enclosure and paired with amplification sized for high AES power.

Intended Uses and Users

This speaker is primarily aimed at enclosure builders, rental companies, integrators, and technicians seeking a transducer capable of handling high levels in the low-frequency spectrum. It is perfectly suited for building or refurbishing Bass Reflex or Horn enclosures (recommended loads), where the goal is to produce firm, impactful, and enduring bass without sacrificing transient cleanliness.

Thanks to its usable frequency range up to 500 Hz, it can also be integrated into certain designs where the crossover point is raised, while maintaining a solid low-frequency foundation. It is a coherent choice for systems focused on amplified music, DJ setups, live events, or event sound where level headroom and long-term reliability make a difference.

Design and Technologies Serving Performance

Excursion, Control, and Reliability Under High Load

The 18DS115 is designed to work hard without losing control: with an Xmax of 10.0 mm and a triple roll suspension, the cone maintains stable guidance as levels increase. The double siliconized spider also contributes to mechanical durability and consistent movement, a crucial factor for limiting mechanical noise and preserving bass precision during long sessions.

Protected Cone and Optimized Behavior

Its curvilinear cone receives a waterproof treatment front and back, useful for better withstanding stresses related to intensive use, environmental variations, and typical subwoofer demands. This design also promotes a more uniform response within the working range, with improved control of breakup modes depending on the enclosure and filtering used.

Neodymium Motor and Linearity

The neodymium magnet helps maintain a powerful assembly while limiting weight, facilitating handling and speaker optimization. The presence of a demodulation ring helps improve motor behavior, notably by reducing certain distortions linked to inductance variations, resulting in cleaner and better-defined bass when the speaker is heavily driven.

Technical specifications

Rackable	No	Type	Speakers
Category	sound reinforcement accessory

Nominal diameter	18" (46 cm)	Voice coil wire	copper
Recommended enclosure	Bass Reflex or Horn	Magnet	neodymium
Power	3400W AES	Linearization element	demodulation ring
Nominal impedance	8 ohms	Suspension	triple roll
Sensitivity	98 dB (1W/1m)	Cone	curvilinear, waterproof treatment front and back
Frequency response	30Hz - 500Hz	Spider	double siliconized
Fs	30Hz	Total diameter	460 mm
Qts	0.2	Height	248 mm
Xmax	10.0 mm	Weight	12 kg
Voice coil diameter	4.5" (116 mm)