Owner's Manual

CONNECTION
Inputs
Connect low impedance microphones to the Mic inputs. If a paging microphone is being used,
connect it to Mic Input 2 so it may be used with the Talk Over function. Connect source signals
such as CD players, cassette players or video players to the RCA Source Inputs. If a jukebox is
being connected, and you want its signal to mute the other source signals, connect it to Source
input 1.
For recording purposes, connect a stereo RCA cable to the Record Out jacks, and to your record-
ing device.
Amp Insert
To connect a signal processor to the
MA1705 signal, use an insert plug, or
cable wired as shown in Fig. 1. This
return signal is then sent to the output
level section of the ampli er.
Output
Connect 70 Volt speakers to the Output of the MA1705 by pressing in each of the spring-loaded
terminals and inserting the proper wire into the proper terminal i.e.; + = red, - = black.
To Amp Insert
OPERATION
DIP SWITCH SETTINGS (From left to right)
• If a microphone requires phantom power, move the Mic channel’s corre-
sponding PHANTOM POWER switch to the up position. This applies 12 volts
dc phantom power to the indicated microphone.
• Mic 2 Priority; when in the up position, all program material on Mic 1 and
Sources 2 and 3 will be “ducked” or muted when a signal is present at Mic 2.
Source 1 is left un-muted.
This function is used for paging.
• Source 1 Priority: when in the up position, Source 2,and 3 will be “ducked”
or muted by the signals at Source 1.
This function is for jukebox priority. With a jukebox connected to Source input 1, and the Talk-
over switch 2 on, the other Source input signals such as background music, will be muted and
only the jukebox will be heard.
FAULT PROTECTION
The fault protection in the MA1705 limits the current to the output stage. This mode is entered
whenever the output stage is called upon for too much power, it may also be fooled by imped-
ances lower than four ohms - which may cause the output stage to overheat and be irreversably
damaged.
BURN WARNING!
THE FRONT PANEL OF THE MA1705 IS THE HEAT DISTRIBUTION FOR THE OUTPUT STAGE. IF THE
UNIT IS OPERATED AT HIGH VOLUMES, IT MAY GET HOT.
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Connects to tip
SEND
Connects to ring
RETURN
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