Mackie SR1530 Owner's Manual - Page 3

Lend Me Your Ears Exposure to extremely high noise levels may cause permanent hearing loss. Individuals vary considerably in susceptibility to noiseinduced hearing loss, but nearly everyone will lose some hearing if exposed to sufficiently intense noise for a period of time. The U.S. Government's Occupational Safety and Health Administration (OSHA) has specified the permissible noise level exposures shown in this chart. According to OSHA, any exposure in excess of these permissible limits could result in some hearing loss. To ensure against potentially dangerous exposure to high sound-pressure levels, it is recommended that all persons exposed to equipment capable of producing these levels use hearing protectors while this unit is in operation. Ear plugs or protectors in the ear canals or over the ears must be worn when operating this amplification system in order to prevent a permanent hearing loss if exposure is in excess of the limits set forth here. Duration Per Day In Hours 8 6 4 3 2 1.5 1 0.5 0.25 or less Sound Level dBA, Slow Response 90 92 95 97 100 102 105 110 115 Typical Example Duo in small club Subway Train Very loud classical music Patrice screaming at Ron about deadlines Loudest parts at a rock concert The SR1530 can produce a maximum SPL of 126 dB @ 1m CONTENTS SAFETY INSTRUCTIONS 2 INTRODUCTION 3 REAR PANEL DESCRIPTION 4 HOOKUP DIAGRAM 4 CONNECTIONS 5 PLACEMENT 5 AC POWER 5 THERMAL CONSIDERATIONS 6 SERVICE INFORMATION 6 Warranty Service 6 Troubleshooting 6 Repair 7 CARE AND MAINTENANCE 8 SR1530 SPECIFICATIONS 8 Architects and Engineers' Specifications 9 INTRODUCTION Thank you for choosing Mackie Designs' active sound reinforcement speaker systems. The SR1530 is a high output, horn loaded, 3-way, wide dispersion, active sound reinforcement system. It features a one-piece 90º x 40º horn, which includes both the mid and high frequency sections in a proprietary "Optimal Wavefront" design. Unlike typical mid/ high horn designs, the high frequency section is positioned to fire down into the six-inch mid-range's dispersion pattern. This creates a focused, single wave front with excellent phase and power response characteristics. The mid-range transducer operates between 700Hz and 3000Hz, eliminating the placement of a crossover point in the middle of critical voice frequencies. Frequencies above 3000Hz are reproduced by a 1-inch exit compression driver. The low frequencies are produced through a high output 15-inch woofer. Connecting and setting up the SR1530 is a breeze. It accepts a line-level signal via a female XLR input jack. A male XLR Thru jack is provided for daisy-chaining the signal to additional SR1530 cabinets. Two built-in power amplifiers provide 100 watts each for the mid-frequency and highfrequency drivers. The low-frequency driver is powered by a high-efficiency, high-current Class G topology amplifier providing 300 watts of power. The amplifier modules sit on a mammoth heatsink that eliminates the need for fans, dramatically extending life expectancy, and eliminating maintenance cycles. A tremendous benefit of having the amplifiers located within the loudspeaker cabinet is that the SR1530 functions as a system, optimizing acoustic, electronic, and mechanical designs to achieve the highest level of performance and value. The cabinet is constructed using both 18mm multi-layered plywood and pressure injected structural resin. Two carrying handles are integrated into each side for easy loading and transport. Don't forget to visit our website at www.mackie.com for more information about this and other Mackie products. 3 ©2002 Mackie Designs Inc. All Rights Reserved. Rev. D