User manual PEAVEY MMA 81502

[. . . ] A grounding type plug has two blades and a third grounding plug. The wide blade or third prong is provided for your safety. If the provided plug does not fit into your outlet, consult an electrician for replacement of the obsolete outlet. Protect the power cord from being walked on or pinched, particularly at plugs, convenience receptacles, and the point they exit from the apparatus. [. . . ] To prevent the risk of shock or fire hazard, always be sure that the mixer and all other associated equipment are properly grounded. Power Switch This rocker switch applies mains power to the unit. If the amp repeatedly blows fuse, it should be taken to a qualified service center for repair. WARNING: The fuse should only be replaced when the power cord has been disconnected from its power source!AC Outlet (Unswitched) Provides AC power for auxiliary equipment with power consumption less than 300 Watts. This outlet is not controlled by the power switch (#13). Outputs A direct output and transformer isolated outputs are provided to allow proper interface between the amplifier and the loudspeaker system. the direct output allows connection to a 4 Ohm speaker system. To use this output, remove the jumper between the 4 Ohm terminal and the XFMR LINK terminal. connect the loudspeaker system to the 4 Ohm and GND terminals. For transformer isolated outputs, ensure the jumper is inserted between the XFMR LINK terminal and the 4 Ohm terminal, then connect load between the desired output and COM. These ports accept and support PLUG-IN MODULES that do not require a +5V power supply. for details , refer to the individual PLUG-IN MODULE Instruction Guide. CAUTION: PLUG-IN MODULES should not be inserted or removed while the mixer/amplifier is turned on. NOTE: No more than two of the optional OPMTM Output Power Modules may be used in each MMA mainframe. These ports accept and support specific PLUG-IN MODULES that do require a +5V power supply, however any PLUG-IN MODULE may be utilized. for details , refer to the individual PLUG-IN MODULE Instruction Guide. CAUTION: PLUG-IN MODULES should not be inserted or removed while the mixer/amplifier is turned on. NOTE: No more than two of the optional OPMTM Output Power Modules may be used in each MMA mainframe. Low cut switch Provides a 6 dB/octave low frequency roll-off at 60 Hz. To be used when the transformer isolated power outputs are connected to the loudspeaker system. Preamplifier Out Provides a line level output of Master Level mix output to drive external devices such as signal processors, hearing assistance systems, or recording equipment. [. . . ] If using the transformer isolated outputs be sure that the Low Cut switch is ON. Connect the loudspeaker system to any ONE of these outputs. There are two types of output: 4 Ohm Direct Output; 8 Ohm, 70V, and 100V via Output Transformer The method of connection differs in each case. If using the transformer isolated outputs be sure that the Low Cut switch is ON. [. . . ]