Electro-Voice QRx 218S

The Electro-Voice QRx 218S is a premium dual 18-inch subwoofer designed to provide deep, powerful low-frequency performance for professional audio applications. It belongs to Electro-Voice’s highly regarded QRx series, known for delivering exceptional sound quality and robust construction. This model is a preferred choice for live sound reinforcement, theaters, houses of worship, and entertainment venues where impactful bass is essential.

At the heart of the QRx 218S are two high-performance EVX180B 18-inch woofers, engineered for precision and power. These drivers can handle a continuous power capacity of 1200 watts, with a peak capacity of up to 4800 watts, ensuring a clean, distortion-free performance even at high sound pressure levels. With a frequency range that extends down to 36 Hz, this subwoofer delivers tight and punchy bass that is both accurate and immersive, making it ideal for enhancing the low-end in full-range sound systems.

The cabinet of the QRx 218S is built to endure the rigors of professional use. Constructed from 13-ply birch plywood, it is finished with Electro-Voice’s EVGuard coating, a tough polyurethane material that resists scratches and damage during transport. The enclosure also features heavy-duty steel grilles and a reinforced design, ensuring durability and longevity. For added versatility, the subwoofer includes integrated pole mounts, allowing it to support satellite speakers for compact, full-range sound systems.

For connectivity, the QRx 218S features dual rear-mounted NL4 Speakon connectors, which support bi-amp and passive operation for flexible integration into a variety of audio setups. Its ergonomic handles and relatively compact design for a subwoofer of this power class make it portable and easy to handle, despite its substantial output capabilities. These practical features make it a favorite for mobile audio professionals and touring setups.

In summary, the Electro-Voice QRx 218S is a reliable and powerful subwoofer that combines exceptional sound performance with rugged, road-ready construction. Whether used in live events, fixed installations, or portable sound systems, the QRx 218S offers the low-frequency reinforcement needed to elevate the overall audio experience. Its combination of durability, precision, and versatility ensures it remains a top choice for audio professionals seeking quality and impact.