Mackie MR3STK Quick Start Guide - Page 4

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 4Ω operation). 2. This rotary control selects the constant voltage distributed system in which the speaker is used. Choices are BYPASS (used for 4Ω operation), 0(Off), 25V, 50V, 70V, and 100V. Connections The spring-loaded speaker terminals are designed to accept bare wire, up to a maximum of 18 gauge. Strip 1/4" of insulation off the end of the speaker wire, press in the tab, and insert the bare wire into the hole. When you release the tab, the wire is locked in place. Make sure there are no stray strands of wire outside the terminal connection. + - Note: Use a slot-head screwdriver to adjust the rotary controls. 3. Use these spring-loaded terminals to connect the speaker wiring. INPUT Installation The MONITOR MR3ST can be mounted using the optional mounting brackets. These include the following: MA3-5 MA3-6 MA-7B Articulated surface mount U-bracket Wall-mount support bracket WARNING: Consult a professional rigger or structural engineer prior to suspending loudspeakers from a structure not intended for that use. 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