Connections; Inputs - MC2 Audio E45 Owner's Manual

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Connections

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

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.

For BRIDGED OPERATION input should be made to channel A only and the rear panel switch set for

bridged mode.

OUTPUTS

Channel A and Channel B speaker outputs are via Neutrik Speakon connectors. Only 2 of the 4 poles are

used. 2-pole (NL2FC) or 4-pole (NL4FC) connectors can be used.

Terminations are as follows :-

ALSO SEE BRIDGED CONNECTION. (Page 8)

NOTE: 1. Negative (-ve) output terminals must not be joined together, since they are not both at 0V.

Because the currents involved are very high, the speaker cables should conform to the following

minimum requirements, otherwise the losses will cause the cables to get hot and audio power

will be reduced:

E45

- 20A into 4 ohm speaker loads.

+1 = +ve

-1 = -ve

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