Preamp - Compressor Loop; Compressor - Eq Loop; Loop Connections - Art Tube Channel User Manual

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 Tube 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 Tube Channel. Since there is no input level control to the
compressor in the Tube Channel, the piece of equipment in the insert
loop should have level matching capabilities (i.e., 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 Tube
Channel. Since there is no input level control to the equalizer in the
Tube Channel, the piece of equipment in the insert loop should have
level matching capabilities (i.e., an output level control).

Loop Connections

To use only the preamp of the Tube Channel: Plug a mic, instrument,
or line level signal into either of the Input Jacks. You can use either of
16