The Electro-Voice QRx 112/75 is a high-performance, 12-inch two-way passive loudspeaker engineered for demanding sound reinforcement in touring, portable, and installed applications. This enclosure integrates a long-excursion 12-inch woofer with a 1.5-inch titanium diaphragm compression driver, coupled to a wide-dispersion constant directivity horn, and managed by a precision passive crossover network. This configuration is designed to deliver powerful low-end punch, articulate midrange, and clear high-frequency reproduction, making it suitable as a versatile main speaker for live music, a high-output stage monitor, or a reliable component in fixed installations for clubs and houses of worship.

Constructed for durability in rigorous professional environments, the cabinet is built from void-free birch plywood and finished with a rugged, textured coating that withstands frequent handling and transport. Its trapezoidal shape facilitates flexible arraying, allowing it to be used as a standalone cabinet or combined with others to form larger systems for extended coverage. The design incorporates integrated handles, robust steel corners, and multiple heavy-duty fly points with internal bracing, providing safe and practical options for ground-stacking, pole-mounting, or flying the system. These features prioritize both acoustic performance and the logistical needs of touring crews.

Sonic performance is characterized by high sensitivity, substantial power handling, and a broad, even dispersion pattern that ensures consistent coverage across wide audience areas. The loudspeaker's ability to achieve high sound pressure levels with low distortion and clear intelligibility makes it a reliable choice for sound engineers who require a balance of power and precision. As a cornerstone of a professional audio arsenal, the QRx 112/75 offers a versatile and dependable solution for a wide range of high-output sound reinforcement challenges.