User manual QSC AUDIO HPR181I DATASHEET

[. . . ] Thick aluminum heat sink extrusions with deep fins provide mechanical strength and plenty of surface area to keep the module running cool. While many powered speaker amplifier modules use low-cost "chip amps", the HPR Series features discrete component designs that deliver the best possible performance even when pushed to the limit. The power modules incorporate sophisticated signal processing functions carefully tailored to the loudspeaker system. [. . . ] The bi-amplified 15" 2-way HPR152i is a versatile speaker that is at home in nearly any sound reinforcement setting. A high-power low-frequency driver with a 3" voice coil provides extension down to 48 Hz. The 1. 75" (diaphragm) compression driver on a 90° x 60° horn delivers smooth high frequencies up to 20 kHz. The power module includes a 100 Hz low-cut filter for use in subwoofer equipped systems. Three threaded M10 inserts allow for vertical suspension. The HPR153i 3-way loudspeaker is a great choice when the warmth, clarity and projection of a horn-loaded mid-range design is desired. The 15" low-frequency driver provides extension down to 36 Hz while the 6" mid-range driver seamlessly handles the critical vocal region. A 1. 4" (diaphragm) compression driver delivers brilliant top end response. Three threaded M10 inserts allow for vertical suspension. For high-level dance music or reinforcement of bass instruments and kick drum, an HPR Series subwoofer will add low-frequency extension and power to any sound system. Both HPR subwoofers use a 700 watt QSC amplifier. Flexible input signal processing and connectivity allow the subwoofers to be used in systems consisting of a single sub and two tops or larger systems employing multiple subwoofers. The signal processing complement includes a stereo electronic crossover with XLR line-level outputs for connection to any powered 2-way or 3-way mid/high speaker. When the requirement is for compact size and tight, punchy low end, the single 15" HPR151i subwoofer is the answer. The HPR151i is capable of producing 133 dB peak SPL with frequency response down to 43 Hz and sound quality that rivals many 18" subwoofers. A top mounted 35mm pole socket is provided. The HPR181i single 18" subwoofer offers truly impressive low-frequency extension and output. The 4" voice coil driver produces 134 dB SPL peak, at 1 meter with frequency response down to 39 Hz. [. . . ] Oversize pocket to hold cables. Specifications subject to change without notice. HPR Series HPR152i Top 13. 3" 337 mm Dimensions HPR153i Top 13. 3" 337 mm 17. 9" 455 mm 33. 6" 853 mm 45. 1" 1144 mm 17. 9" 455 mm 19. 1" 485 mm Side 19. 1" 485 mm Side HPR122i Top 14. 9" 379 mm Front 14. 7" 373 mm Front HPR151i Top 26. 9" 683 mm HPR181i Top Front 20. 75" 525 mm Side 22. 9" 582 mm 22" 559 mm 23. 5" 597 mm 25. 6" 651 mm 28. 6" 727 mm Front Specifications subject to change without notice. Side Front Side QSC and the QSC logo are registered trademarks of QSC Audio Products, LLC in the U. S. Patent and Trademark office and other countries. Cordura is a registered trademark for durable fabrics. [. . . ]