Loyola Enterprises

A veteran and minority owned SDB Certified Business.



757.498.6118 Ext - 109QRx-212/75 - Call for pricing - Dual 12-inch two-way 600 watt loudspeaker


PDFQRx-212/75 Specifications (pdf)

The QRx-212/75 is two-way, full-range loudspeaker system incorporating two 12" woofers and a 3" voice coil compression driver on an asymmetrical 75° x 50° fully rotatable constant-directivity horn. In factory delivered position, this provides a 15° up/35° down vertical coverage pattern. The trapezoidal cabinet design allows this main PA system cabinet to easily conform to multi-cabinet arrangements or limited space clearances without sacrificing internal volume. The fully rotatable horn means regardless of cabinet position, pattern control is user-determined.

The QRx-212/75 is a good solution for medium size rooms and audiences as a main PA providing moderate levels with good bass response and added punch in the lower and mid frequencies, satisfying most DJ and live band applications. The asymmetrical horn can allow a single box to more adequately direct the high frequencies as needed, as well as streamline multi-cabinet arrays when rotated by extending horizontal coverage while minimizing overlapping and allowing tighter packs between the cabinets.


  • Dual 12" Two-Way Full-Range Loudspeaker System
  • Fully rotatable asymmetrical horn for use in any cabinet position
  • Externally switchable biamped or passive operation
  • (2) DL12BFH 12" woofers in vented enclosure
  • DH7 compression driver with 3" titanium diaphragm
  • Parallel Neutrik® NL4 input connections

Architectural and Engineering Specifications

The two-way, full-range loudspeaker system shall incorporated two 12-inch transducers with cast aluminum baskets as the LF components and one 3-inch diameter voice coil/diaphragm compression driver as the HF component. The compression driver shall be mounted on a 75-degree x 50-degree asymmetrical constant directivity horn with a factory delivered position of 15 degrees up/35 degrees down/50 degrees horizontal configuration. The horn shall be constructed of a material and design so as to be capable, structurally, of supporting the HF driver without any internal braces or suspensions, allowing a full 360-degree rotation of the horn. The enclosure shall be included, providing crossover filters for component band passes and nominal system voicing. The input panel shall incorporate two switches, allowing external configuration between biamped or passive operation. Input connections shall be accommodated with two paralleled NL4 female Speakon® connectors.

Loudspeaker system frequency response shall be no less than 52 Hz to 16 kHz (-3 dB) measured on axis. The loudspeaker shall produce a sound pressure level (SPL) of 102 dB on axis at 1 meter with a power input of 1 watt and shall be capable of sustaining a full power, long-term average output of 129 dB on axis at 1 meter (135 dB peaks). The full-range system, with passive network engaged, shall handle 600 watts of amplified power long-term in compliance with AES-EIA standards and have a nominal impedance of 4 ohms.

The loudspeaker enclosure shall be constructed of 13-ply void-free cross-grain-laminated Birch plywood. It shall be finished in black or white acrylic paint or available unfinished. It shall be of a trapezoidal shape. Handles shall be recessed within the sides of the enclosure and of such design to allow safe handling from any direction. The top and bottom of the enclosure shall have L-track rigging installed and the rear shall have a pull-up point. Three single studded ancra fittings rated for overhead use shall be included with each loudspeaker system. Fittings shall include a tethered safety pin to ensure proper installation.

The two-way full-range loudspeaker system shall be the Electro-Voice model QRx-212/75.

Frequency Response (-3dB) 50 Hz–15 kHz LF Power Handling 600 W cont. / 1200 W prog. / 2400 W peak
Frequency Range (-10dB) 43 Hz–18 kHz HF Power Handling 75 W cont. / 150 W prog. / 300 W peak
Sensitivity 1 W/1 m (LF/HF) 102 dB / 112 dB Crossover Frequency 1500 Hz (24dB/oct.)
Max SPL/ 1m (calc) 136 dB Rec. High-Pass Freq. 45 Hz (12dB/oct.)
Coverage (HxV) 75° x 50° Nominal Impedance (LF/HF) 4 Ω / 8 Ω
Connectors (2) Neutrik Speakon NL4’s Suspension L-Track
Enclosure Material 13-ply Birch plywood w/ black acrylic textured finish Grille Powder coated perforated 16-GA steel
Dimensions (HxWxD) 99.0 x 39.0 x 37.5 cm
(39.0" x 15.5" x 14.8")
Weight 36.5 kg (80 lbs)
For pricing options and packages, contact us at
757.498.6118 Ext - 109, Or