EAW Passive 2 x 18" Touring Subwoofer. Black

The EAW SB528zR BLACK is a high‑output, large‑format passive subwoofer designed for professional concert touring, fixed installation, and demanding sound reinforcement systems. It features dual 18‑inch long‑excursion drivers in a vented enclosure that delivers deep, impactful low‑frequency output. The “R” version is intended for production and touring use and includes handling features, while maintaining the robust performance expected in large venues such as theaters, clubs, houses of worship, and auditoriums. The enclosure’s textured black finish and rugged construction make it suitable for repeated rigging and transport, while requiring external amplification and DSP processing for integration with full‑range loudspeaker systems.

Key Features

Acoustic & Performance

• Dual 18‑inch cone drivers in a vented, direct‑radiating enclosure

• Frequency response: approximately 27 Hz to 147 Hz for deep sub‑bass and controlled mid‑bass reproduction

• Very high output capability, capable of reaching over 140 dB SPL in half‑space conditions

• 360° horizontal and vertical beamwidth for even low‑frequency coverage when arranged in arrays with other units

• Designed to be used with external DSP processors for optimized low‑frequency response and crossover control