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Page 36
APA-4E8 Operator’s Manual
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Output Channel Menu
Overview
Pressing one of the output edit buttons allows adjustment and viewing of parameters
associated with the power amplifier output channels, including quick gain trim, checking of
the limiter threshold and adjustment of the output polarity. The list of output menu options
deliberately starts with the quick gain trim, so that it’s easy to adjust this with just a single
button press. Navigation through the list is with the BACK and NEXT keys.
Press the EDIT button again to exit, or press the Power/Home key.
Quick Gain Trim
Adjust the channel’s output level by +12dB. This is a trim only, and is relative to the output
gain set within the channel’s preset. It is reset to 0dB when a new preset is recalled.
Pressing the channel’s Mute will change the readout to red, as the main LED output meters
may be reading pre-mute and so still register level.