
Rear Panel: Preamp (cont.)
INSERT SEND and RETURN
These connectors allow you to place another processor such as a de-esser or Graphic EQ into the pre-
amp signal path. This would generally be used to take advantage of the 576Õs digital output option. A
signal from your microphone or instrument could be preamplified by the 576, processed externally
through the INSERT I/O and returned to the 576 to be passed along to the high-resolution dbx
TYPE
IV
ª
digital output. The Send may also be used as a direct post-preamp output that bypasses the EQ
and main output stages of the 576.
The Send is post-preamp and the Return is pre-EQ. Both the Send and Return are balanced TRS jacks
with +4 dBu nominal sensitivity. The Return can also be used as an alternate input that makes use of
the equalizer, Limiter, and digital output option without passing through the tube in the Preamp sec-
tion. This input source would be selected by pressing the INSERT switch on the front panel.
LINE OUTPUTS
Both XLR and TRS 1/4Ó connectors are provided for connecting either balanced or unbalanced line-
level devices to the 576. The nominal output level can be set to 4 dBu or -10 dBV with the
+4 dBu/-10 dBV switch.
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