Features Package Includes: (2) QRx 112/75 12-inch Two-Way Full-Range Loudspeakers • (2) QRx 118S Compact 18-inch Subwoofers • (1) CP3000S 120V Power Amplifier Electro-Voice QRx 118S Compact 18-inch Subwoofer Features: • Concert-proven high-output performance. • Accurate transient detail. • EVX-180B woofer for superior linear excursion. • High sensitivity, 137 db maximum SPL (peak). • Power handling: 600 W continuous, 2400 W peak. • Rectangular 13-ply birch vented enclosure. • Built-in handles and 1 3/8-inch pole-mount receptacle. • Threaded T-nuts (4) for casters or dollies. Electro-Voice QRx 112/75 12-inch Two-Way Full-Range Loudspeaker Features: • Compact with high output. • Ideal for mains (small-to-medium rooms) or monitors. • Cast-frame woofer, vented cabinet for extended LF. • 3-inch DH7 titanium HF compression driver. • Rotatable 75° x 50° Constant-directivity horn. • Asymmetric 10° down-angled coverage. • Externally switchable biamped or passive operation. • High sensitivity, 131 db maximum SPL (peak). • Power handling: 300 W continuous, 1200 W peak. • 5-sided 13-ply birch enclosure with monitor slant. • Built-in handles and L-Track rigging. Electro-Voice CP3000S Power Amplifier Features: • Advanced high-efficiency Class-H design. • Ideal for demanding concerts and tours. • Exceptional dynamic headroom. • Rugged, compact, and lightweight. • 1600 W per channel (2 Ω). • XLR pass-though input connections. • Easy connection to bi-amped loudspeakers. • Switch mode power supply. • Built-in dynamic limiters. • Complete protection: thermal, overload, shorts, HF, DC, back-EMF, inrush current. • Three-stage front-to-rear fans. Description Product Description The QRx-112/75 is a two-way, full-range loudspeaker system that incorporates a 12-inch woofer and a 3-inch voice coil compression driver on an asymmetrical 75-degree x 50-degree fully rotatable constant-directivity horn. In factory-delivered position the horn provides a 15-degree up/35-degree down vertical coverage pattern. The five-sided cabinet design allows this main PA system cabinet to easily conform to duties as a floor monitor or to be tucked tightly against a ceiling for low-profile applications. The fully rotatable horn means that regardless of cabinet position, pattern control is fully user determined.
The QRx-118S is a dedicated subwoofer loudspeaker system that incorporates the EVX-180B 4-inch voice coil driver for maximum LF reproduction power with minimum box volume. This vented, 600-watt system easily provides 131 dB SPL1 @1 w/1 m (137 dB peak1) at full power in a rectangular enclosure that is stable and readily stacks for extra energy or slides easily under even the lowest stages.
The new switching power supply technology, completely designed from scratch and the consistent use of Class-H technology provide extensive headroom far above the stated nominal output and conspicuous reduction in leakage power at the same time. The employed switching power supply combines the headroom-advantage of a transformer power amplifier with low weight of a pulsed power supply unit resulting in an improved performance-to-weight ratio.