Moisture can damage the speaker cone and surround and cause corrosion of electrical contacts and metal parts. Avoid exposing the speakers to direct moisture. Keep speakers out of extended or intense direct sunlight. The driver suspension will prematurely dry out and finished surfaces may be degraded by long-term exposure to intense ultra-violet (UV) light. MRX500 speakers can generate considerable energy. When placed on a slippery surface such as polished wood or linoleum, the speaker may move due to its acoustical energy output. Precautions should be taken to assure that the speaker does not fall off a stage or table on which it is placed. 60 Hz - 20 kHz 90 Hz - 20 kHz 70º x 70º nominal Passive 1. 7 kHz 400 W / 800 W / 1600 W, 2 hrs1 350 W / 700 W / 1400 W, 100 hrs1 123 dB SPL continuous (129 dB SPL peak)2 97 dB SPL 1 x JBL 262H 305 mm (12 in) Differential Drive® woofer 1 x JBL 2408H 37. 5 mm (1. 5 in) annular polymer diaphragm, neodymium compression driver 8 ohms Symmetrical stage monitor, 15/18 mm, plywood. Dual-angle (0° or -10°), 35 mm pole socket Integrated handle / input cup Black DuraFlexTM finish Powder coated, black, 16 gauge perforated steel with acoustically transparent black screen backing. Neutrik® Speakon® NL-4 (x2), one on each end 645 mm x 380 mm x 345 mm (25. 25 in x 15. 0 in x 13. 5 in) 14...