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If you are using a compatible Gryphon preamplifier, you may choose to connect the Green Bias
control link to automatically change bias with reference to the current position of the
preamplifier’s volume control.
Please note that the green bias system and cable is not a part of the signal path and only has
reference to the volume control position of the preamplifier.
The Apex Power Amplifier will change bias setting corresponding to preprogramed switching
points from the preamplifiers volume control. It is possible to change these volume control
switching points in your Gryphon preamplifier: Please refer to the manual for your preamplifier.
In order to enable Green Bias control; the Apex Power Amplifier must be set manually to BIAS
M or BIAS H using the bias touch buttons on the front panel.
The Apex Power Amplifier will ignore Green Bias control if set to BIAS L manually on the front
panel.
GREEN BIAS ACTIVE:
The indicator will be on for 5 seconds if Green Bias cable is connected and changes state:
The Apex Power will change to Bias High if receiving “Bias High” command from the
preamplifier.
It will change to Bias Medium if receiving “Bias Low” or “Bias Medium” commands from the
preamplifier.
If you remove the green bias link cable between the Apex Power Amplifier and the Gryphon
preamplifier, the Apex Power Amplifier will automatically revert to manual bias operation only.
In case you own a Gryphon preamplifier with only one green bias link output, and you have the
Apex Mono Power Amplifiers set, do the following:
1. Connect the Green Bias cable included with your preamplifier from the Green Bias output
on your preamplifier to Green Bias input on one of your Apex Mono Power Amplifiers.
2. Connect the Green Bias included with your Apex Mono Power Amplifiers from Green Bias
pass-thru to Green Bias input on your second Mono Power Amplifier
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