Inter-M MA-106A - Manual (Page 8)

PUBLIC ADDRESS AMPLIFIER
5 MA-106A
Rear Panel Rear Panel
1. AC MAINS
Connect this cable to an AC outlet.
2. MAIN SPEAKER OUTPUTS
This 5.08mm Euroblock connector is used for the main speaker output wiring. For low impedance speaker
loads, minimum 4Ω, connect between the COM and 16V/4Ω pins. For 70V/82Ω or 100V/167Ω speaker
loads (USA/CANADA & Associated : 25V/11Ω or 70V/82Ω), the LINK wire must first be installed between
the 16V/4Ω pin and OPT IN pin, then connect the speaker load between COM and 70V or 100V pins.
3. ZONE 2 AND PREAMP OUTPUTS
In addition to the main 60 Watt amplifier output, there is a separate ZONE 2 output which is a switch
selectable mix of channels 1, 2, or 3. This output is not effected by the priority ducking/mute action or by
the bass/treble EQ controls.
The ZONE-2 output provides two signals; 1) a low impedance output that is capable of continuously driving
1 Watt into an 8 Ohm loudspeaker, and 2) a 600 Ohms transformer balanced output. Zone 2 output is
controlled by the rear panel Zone 2 level control, as well as the three channel assign DIP switches.
The PRE OUT connection is used for driving additional external devices with the same signal that drives the
main MA-106A power amplifier. The PRE OUT 600 Ohms output signal is taken before the master volume
control.
4. INPUT 3 CONNECTORS
3.5mm Euroblock connectors and summed stereo RCA jacks are used for input 3. If wiring an unbalanced
input signal into a balanced Euroblock input, be sure to ground the (-) input pin.
5. INPUT 2 CONNECTORS
3.5mm Euroblock connectors and summed stereo RCA jacks are used for input 2. If wiring an unbalanced
input signal into a balanced Euroblock input, be sure to ground the (-) input pin.
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