Coda C45 Guia do Utilizador descarregar pdf (Página 7)

C45 User Guide Version 1.0 7

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: Pin + 1 = +ve

Pin - 1 = -ve

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

2. 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:

C45 - 20 A into 4 Ohm speaker loads.

Bridged (Mono) Mode

Use centre Speakon connector marked ‘BRIDGED’ and connect as follows:

For bridged operation: Pin 1- = -ve (Ch A)

Pin 2+ = +ve (Ch B)

For 4-pole connection to both channels: Pin 1+ = Ch. A +ve

(Bridged switch de-selected [ie Out]) Pin 1- = Ch. A -ve

Pin 2+ = Ch. B +ve

Pin 2- = Ch. B –ve

When operating in bridged mode, the minimum impedances are doubled. The minimum load in

bridged mode is 4 Ohm.

Link Socket

Each channel is provided with a 3-pin XLR connector marked ‘LINK’ which allows the input signal to

be linked to further amplifiers etc. The connections are the same as for the input XLR.

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