User manual ELECTRO-VOICE MA-1212 EDS

[. . . ] MA-1212 Mixer Amplifier 120-Watt, 12 Input Mixer Amplifier General Description: The Electro-Voice ® MA-1212 is a 120-watt, twelve-input mixer amplifier designed for commercial sound applications. [. . . ] A preamplifier output jack and power amplifier input jack permit the mixed output to be fed to an external signal processor (graphic EQ or compressor), and then returned to the built-in amplifier. The preamp output may be used to drive an additional power amp with its own set of speakers without interrupting the function of the built-in amplifier. There is also a 24v dc power option to operate the unit off of a 24v emergency power source. The speaker output is available at a barrier strip, which includes terminals for driving low impedance loudspeaker loads, as well as 25, 70. 7 or 100 volt distributed systems. at the paging input, it shall automatically mute other input sources. The mixer amplifier shall meet the following performance criteria: output power shall be 120 watts; total harmonic distortion shall be less than 1% at 1 kHz; frequency response shall be within ±3 dB from 50 Hz to 15 kHz; input impedance shall be 600-ohms (balanced inputs) or 47 kW (unbalanced inputs); nominal load impedance shall be 4-, 8- or 16-ohms for voicecoil-connected loudspeakers, 25, 70. 7 or 100-volt nominal transformer windings for the constant-voltage output. In addition to a preamplifier output/power amplifier input link, there shall also be a line-level balanced XLR output. The mixer amplifier shall operate from either a standard 120 V ac 50/60 Hz or a 24V dc power source, and measure 13. 3 cm (5. 2 in. ) high x 48. 0 cm (18. 9 in. ) wide x 32. 0 cm (12. 6 in. ) deep. The mixer amplifier shall be the Electro-Voice ® Model MA-1212. Architects' and Engineers' Specifications: The mixer amplifier shall have twelve input channels, with individual mix gain controls. [. . . ] For customer orders, contact Customer Service at: + 1 952 884-4051 Fax: + 1 952 887-9212 For warranty repair or service information, contact the Service Repair department at: 800/685-2606 For technical assistance, contact Technical Support at: 866/78AUDIO Specifications subject to change without notice. [. . . ]