B&C Speakers - 21DS115 8 Ohm Push Buttons

The B&C Speakers 21DS115 8 Ohm Push Buttons is designed for those looking to push the limits of bass, while maintaining perfect cone control and stable mechanical performance.

This 21-inch subwoofer is designed for the most demanding sound pressure configurations, with a design that combines thermal innovation, power handling, and long-term reliability.

This model features a 116 mm voice coil, wound in four layers on a fiberglass support. At 36 mm long, it allows for better energy distribution in the air gap, limiting heating while increasing displacement linearity.

Combined with an internal neodymium magnet, this architecture optimizes flux density without adding bulk. The result is improved sensitivity (99 dB), 3400 W program power handling, and a response that naturally extends from 30 Hz to 1 kHz.

The triple-roll suspension and double silicone spider ensure precise cone guidance throughout its entire travel. The cone itself is reinforced with a TWP treatment on both sides, guaranteeing its resistance to humidity and repeated mechanical stress. This speaker boasts an Xmax of 15 mm and a generous Xvar of 17 mm, allowing for significant excursion without loss of control.

Ideal in a volume of approximately 130 dm³ tuned to 40 Hz, the 21DS115 is ideal for very large-format sound systems, cardioid subwoofers, or fixed installations in locations requiring even coverage and a deep response.

Despite its size, it remains surprisingly easy to handle, with a net weight of 14.7 kg and a depth of 255 mm. An essential reference for bass that must remain solid, powerful and detailed.