Connections; Inputs - MC2 Audio E Series Instruction Manual

Connections

INPUTS

Note: This amplifier is wired to the latest industry recommendations. PIN1 is connected directly to the
chassis/mains earth. If ground loops (mains hum) are encountered remove the screen
connection from the other end of the cable and leave it open circuit. If problems persist, consult
your dealer/supplier, DO NOT TAMPER WITH OR ALTER ANY GROUND (EARTH) CONNECTIONS
INSIDE THE AMPLIFIER.
The inputs are made via 3-pin XLR connectors, which are electronically balanced and should be
connected via a high grade twin core screened cable, as follows:-
PIN1 - Screen (see note)
PIN2 - Hot (signal +)
PIN3 - Cold (signal -)
The amplifier is designed to operate with fully balanced equipment and ground loops or loss of
performance may be experienced if connected to unbalanced sources. If it is unavoidable however, the
following wiring should be used. The cable should still be twin core plus screen.
PIN1 - Screen - connected to the chassis of the unbalanced equipment - or left disconnected at the
unbalanced end.
PIN2 - Signal Hot
PIN3 - Signal Cold
For BRIDGED OPERATION use channels A & B (or C & D). Inputs should be connected to channel A (or
C). Pressing the A/B link switch (or C/D link switch) on the rear panel connects B amplifier to the A input
(or the D amplifier to the C input).
Input Link Switches.
The three input link switches on the rear panel link the inputs of the channels to the one higher up the
hierarchy ladder. So the following combinations can be achieved.
A & B (input on A)
A & B & C (input on A)
A & B & C & D (input on A)
This switching, together with internal crossover cards (optional extras) provides a wide variety of input
connection options.
B & C (input on B)
B & C & D (input on B)
C & D (input on C)
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