User's Manual

Rear Panel Features

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1. AUTO/ON/OFF Switch

Your Cinema Grand Amplifier is designed with an automatic on/off circuit.

•In the AUTO-ON position, the amplifier will automatically turn on if an audio signal is present at the left front or center inputs. The amplifier will automatically turn off after approxi- mately 30 minutes absence of an audio signal.

•In the POWER ON position, the amplifier is always on.

•In the POWER OFF position, the amplifier is always off.

2.RCA Inputs

Your Cinema Grand Amplifier has three sets of inputs for each of the five channels. Two are unbalanced RCA inputs and one is a balanced XLR type.

The two RCA inputs for each channel are joined together internally and either one can be connected to the corresponding output of your preamplifier. The other can be used as a daisy-chaining output, sending the preampli- fier output signal to another channel or to another amplifier.

3. XLR Inputs

If your preamplifier has XLR outputs, connect them to the XLR inputs. Use them instead of the RCA inputs because balanced connections offer superior noise rejection.

The female XLR inputs are wired as follows:

Pin 1 is ground

Rear

Pin 2 is negative (cold)

Panel

Pin 3 is positive (hot)

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Balanced connections pass the input signal along

two conductors. If there is any external noise and interference passing into the audio lines, both conductors will receive the same amount of noise. This noise is then rejected in the balanced input stage of the Cinema Grand Amplifier.

4.Current Source Outputs and

5.Voltage Source Outputs

The front left, front center and front right channels have two sets of outputs. The voltage source output has a source impedance of approximately zero ohms. The current source has a source impedance of approximately one ohm. The left rear and right rear channels have voltage source outputs only.

8Rear Panel Features