Art Pro Channel, Руководство пользователя

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Input
One input jack per channel should be used at a time. However, because of its design,
the Pro Channel
can be hard-wired without having to disconnect the XLR inputs when
using the ¼” jacks. If no load is placed on the XLR input (no instrument or microphone
connected), the ¼” jack will function as if there was nothing connected to the XLR
input. However, it is still preferable to disconnect any unused cables to avoid pick up of
extraneous noise, hum, or RF interference.
Output
Both balanced and unbalanced output connections may be used simultaneously. This is
particularly useful when using the Pro Channel as a direct box for instruments or line
level signals.
Note: If you experience a hum when using both output connectors
simultaneously (one to the console and one to an instrument amp), a ground loop may
be the problem. To remedy this problem, disconnect the ground wire (pin 1) from the
XLR cable plugged into the Pro Channel’s output (or use a ground-lifted audio cable).
This interrupts the ground path and therefore breaks the loop.
Loop Inserts
Two signal loops are provided to connect external equipment to the Pro Channel, to use
only specific individual circuits, or to take direct signal paths from specific sections.
The connections are unbalanced ¼” (Tip = Hot (+), Sleeve = Ground). Both of the
“send” jacks may be used without interrupting signal-flow through the Pro Channel.
The “return” jacks break the signal-flow when a jack is inserted.
The loops may also be utilized to “re-patch” the compressor and equalizer circuits in a
different order (i.e., signal flow = preamp
to equalizer to compressor).
Preamp - Compressor Loop
A loop is provided between the output of the preamp circuit and the input of the
compressor circuit. The Preamp Send jack is located directly
after the Preamp Output
level control. This jack may be used to send an unbalanced signal directly to an input of
a recorder, mixer or other piece of outboard equipment.
The Compressor Return jack is located directly
before the Threshold Control of the
compressor circuit. This jack may be used to connect the output of a piece of equipment
to the input of the compressor circuit in the Pro Channel. Since there is no
input level
control to the compressor in the Pro Channel, the piece of equipment patched into the
insert loop should have an
output level control.
Compressor - EQ Loop
A loop is provided between the output of the compressor circuit and the input of the
equalizer circuit. The Compressor Send jack is located directly
after the Compressor
Output level control. This jack may be used to send an unbalanced signal directly to an
input of a recorder, mixer or other piece of outboard equipment.
The EQ Return jack is located directly
before the input of the equalizer circuit. This
jack may be used to connect the output of a piece of equipment to the input of the
equalizer circuit in the Pro Channel. Since there is no
input level control to the
equalizer in the Pro Channel, the piece of equipment patched into the insert loop should
have an
output level control.
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