The QRx-153/75 is a 15-inch three-way, full-range loudspeaker system that requires bi-amping at 500 Hz and its power handling are 400 -1,600 watts LF and 150 – 600 watts HF. Horn-loaded 8-inch midrange driver is coupled to an asymmetrical 75° x 50° constant-directivity horn and operates from 500 – 1,200 Hz DH7 3-inch voice coil HF compression driver is mounted on an asymmetrical 75° x 50° constant-directivity horn. Concert-proven DL15ST woofer delivers solid bass to 45 Hz in the large vented enclosure Ring-Mode Decoupling delivers pristine vocals and rich, accurate mids and instrument reproduction. The 15 o trapezoidal enclosure is built of void-free, grain-oriented 13-ply Birch plywood finished in Futura, a sprayed-on polyurethane finish that is very rugged. QRx153 comes complete with L-track rigging hardware and single-stud Ancra fittings.