User manual MACKIE FR

[. . . ] TWO CHANNEL POWER AMPLIFIERS FR·800, FR·1400, and FR·2500 OWNER'S MANUAL FR Series FR SERIES AMPLIFIERS Important Safety Instructions 1. Donotblockanyventilationopenings. Installinaccordancewiththe manufacturer'sinstructions. Donotinstallnearanyheatsourcessuchasradiators, heatregisters, stoves, orotherapparatus(includingamplifiers)thatproduceheat. Donotdefeatthesafetypurposeofthepolarizedorgrounding-type plug. Apolarizedplughastwobladeswithonewiderthantheother. [. . . ] The outlet should be a three-prong socket that matches the power cord. WARNING: Bypassing the plug's safety ground pin can be dangerous. If the amplifier should overheat, a thermal switch turns off the power amplifier, allowing the heatsink to cool down. Once the amplifier has cooled to a safe operating temperature, the thermal switch resets and reactivates the amplifier. If this should occur, identify the cause of the problem and take corrective action. For example: · · · Provide better ventilation Install a fan in the rack to move more air Make sure the amplifier is not overloaded with too low of a load impedance or by a short circuit on the speaker line Owner's Manual 11 The AC current demand of an amplifier varies dependRACK MOUNTING ing on several factors, including the load impedance, the crest factor, and the duty cycle of the program The FR amplifiers are designed to be mounted in a material. They require two rack spaces (2U = music where musical peaks are just below clipping, the 3. 5"). They also require 15. 75" depth inside the rack, amplifiers require the following average currents: including the rear support brackets. When designing your rack, put the heavier items at the bottom and the FR·800 = 5 A lighter items toward the top. FR·1400 = 7 A Secure the front panel of the amplifier to the front of FR·2500 =10 A the rack using four screws with soft washers to prevent scratching the panel. In addition, because of the weight It is recommended that a stiff supply of AC power be used because the amplifier places high current demands of the amplifier, you must secure the rear support brackets of the amplifier to the back of the rack. The more power that is available on the use a support rail or shelf across the back of the rack, or line, the louder the amplifier will play and the more angle brackets attached between the rear support rails peak output power will be available for cleaner, punchand the rear rails of the rack. all components mounted in a rack that is going to be If you have more than one amplifier sharing an AC moved frequently. Rather, sequence them on, one at a time, MAINTENANCE to prevent popping the circuit breaker (due to in-rush current). Usually, your amplifier will not require regular maintenance for normal use. However, you can do several THERMAL CONSIDERATIONS things to keep it in good operating and cosmetic condition. Air is drawn · Testing: Periodically test your system for through the rear panel vents, to cool down the amplifier proper performance. A simple test is to play a heatsinks, and then expelled through the front panel CD through it using well-defined, articulate, vents. Listen to ensure When installing, be sure to allow sufficient air space all drivers are working properly and for any eviaround the front and rear of the amplifier for adequate dence of distortion or other extraneous sounds. Leave at least one rack space Test at several volume levels: very low, normal, above and below, and at least 6 inches behind and in and high. · Cleaning: Use only a clean dry cloth to dust off and clean the surface. Turn off the power to the amplifier while you do this. Owner's Manual FR SERIES AMPLIFIERS Appendix A: Service Information Warranty Service · Details concerning Warranty Service are spelled out in the Warranty section on page 19. [. . . ] Ship the product in its original shipping carton, freight prepaid to the authorized service center. The address of your closest authorized service center will be given to you by Technical Support, or from our website. IMPORTANT: Make sure that the Service Request Number is plainly written on the shipping carton. LOUD Technologies reserves the right to inspect any products that may be the subject of any warranty claims before repair or replacement is carried out. [. . . ]