User manual MACKIE MR4WT QUICK START

[. . . ] Connections are made to recessed, color-coded spring-loaded terminals. The enclosure is constructed of highdensity polystyrene, with integrated mounting points for use with the optional mounting hardware, and includes a protective perforated steel grille. Safety First! Before connecting and using the equipment, please read this Quick-Start Guide carefully and keep it for future reference. WARNING This equipment has been designed to be installed by qualified professionals only! [. . . ] Respect the safety standards ­ The entire sound system must be designed in compliance with the current standards and laws regarding electrical systems. 8. Specifications ­ When installing and using this Mackie Industrial product, keep in mind the technical specifications indicated in the dedicated section of the manual. Accessories ­ Install and use this Mackie Industrial product only with the accessories specified by the manufacturer or supplied with the product. Hearing loss - Exposure to high sound levels can cause permanent hearing loss. The sound pressure level which leads to hearing loss varies considerably from one person to another, and depends on the duration of exposure. Government's Occupational Safety and Healt Administration (OSHA) has established the maximum sound pressure levels that can be with stood without causing damage, which are shown in the table below. According to the OSHA regulations, any exposure over the maximum limits indicated in the table can reduce the hearing capacity of a person. To prevent potentially dangerous exposure to high sound pressure levels, anyone subjected to such levels must use suitable protection. When a Mackie Industrial product capable of producing high sound levels is being used, it is therefore necessary to wear ear plugs or protective earphones when the limits shown in the table are exceeded. Consult the specifications provided in the instruction manual to know the maximum sound pressure (SPL) the speaker is capable of producing. Duration per day (hours) 8 6 4 3 2 1. 5 1 0. 5 0. 25 or less Sound level (dBA) 90 92 95 97 100 102 105 110 115 Typical example Duo in a small club Subway train Very loud classical music Locomotive at 50 feet Loudest parts at a rock concert 2 MONITOR 4T 10W 20W 30W 5W 1W POWER CAPACITY 60W SERIAL NO. 25V 0 BYPASS 4 50V 70V 100V MADE IN ITALY NOMINAL IMPEDANCE 4 + ­ Hookup SERIAL NO. MONITOR 4T 10W 20W 30W 5W 1W POWER CAPACITY 60W MONITOR 4T 25V 0 50V 70V 100V MADE IN ITALY BYPASS 4 10W 20W 30W 5W 1W POWER CAPACITY 60W SERIAL NO. 25V 0 BYPASS 4 50V 70V 100V MADE IN ITALY NOMINAL IMPEDANCE 4 NOMINAL IMPEDANCE 4 OUTPUTS 25V 50V 70V 100V GND POWER AMPLIFIER + ­ + ­ 70V Connection SERIAL NO. SERIAL NO. MONITOR 4T 10W 20W 30W 5W 1W POWER CAPACITY 60W MONITOR 4T 25V 0 50V 70V 100V MADE IN ITALY BYPASS 4 10W 20W 30W 5W 1W POWER CAPACITY 60W 25V 0 BYPASS 4 50V 70V 100V MADE IN ITALY NOMINAL IMPEDANCE 4 NOMINAL IMPEDANCE 4 OUTPUTS + L ­ + R ­ POWER AMPLIFIER ­ + ­ + 4 Ohm Stereo Connection 3 Rear Panel Features and Controls 1. This rotary control selects the power tap for the internal constant voltage transformer. Choices are 1W, 2. 5W, 5W, 10W, 20W, and BYPASS (used for 4 operation). This rotary control selects the constant voltage distributed system in which the speaker is used. [. . . ] Always know the working load limit of the structure supporting the loudspeaker array. Always make sure that the rigging hardware minimum rating is at least five times the actual load. 4 MR4T/MR4WT Specifications System: Freq. Coverage Angle (­6 dB): 120°, averaged 800Hz-16kHz Vert. [. . . ]