EAW QX399-WP

High-Performance Sound Solution for Installations
The EAW QX399-WP WHITE is a premium 2-way full-range loudspeaker engineered for permanent installations requiring high output and precise sound coverage. Its robust design and advanced technology make it ideal for medium-throw applications in arenas, stadiums, live music venues, and dance clubs. The speaker's broadband pattern control effectively manages acoustically challenging environments like cathedrals and reverberant public spaces, ensuring clear and intelligible audio delivery. ​

Advanced Compression Driver with Constant Directivity Horn
At the heart of the QX399-WP WHITE is an ultra-efficient high-frequency compression driver paired with a 90° x 90° constant directivity horn. This configuration provides consistent and controlled dispersion across both horizontal and vertical planes, delivering balanced audio coverage throughout the venue. ​

Innovative Low-Frequency Transducer Arrangement
The loudspeaker features four Phase Aligned™ 10-inch low-frequency transducers arranged in vertical and horizontal pairs. This strategic placement leverages beneficial interaction based on their spacing, extending pattern control into the low-frequency range and ensuring a cohesive and powerful bass response. 

Point Source Coherence for Superior Sound Quality
By symmetrically surrounding the high-frequency compression driver with the low-frequency transducers, the QX399-WP WHITE achieves a point source output. This design ensures that the full frequency spectrum appears to originate from a single point in space, eliminating anomalies associated with physically offset components and providing a seamless and natural listening experience. ​

Flexible Amplification Modes for Versatile Integration
The QX399-WP WHITE offers selectable single-amp and bi-amp operating modes to accommodate various system configurations. Each woofer pair is independently wired to the input plate, allowing for flexible wiring options, including independent, series, or parallel connections. This adaptability simplifies integration into existing audio systems and supports diverse installation requirements. ​EAW: Eastern Acoustic Works+1EAW: Eastern Acoustic Works+1

Durable Construction for Reliable Performance
Constructed from exterior-grade Baltic birch plywood and finished with a wear-resistant textured white paint, the QX399-WP WHITE is built to withstand the rigors of permanent installation. The powder-coated perforated steel grille provides additional protection for the internal components, ensuring longevity and consistent performance in various environmental conditions.