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676
TU B E M I C
CHAN N E L STR I P
Using The 676 Compressor At Mixdown
It is possible to use the 676 compressor during the mixing stage if your audio interface has a spare line output, available line
input, and decent-quality A/D and D/A converters. This allows you to non-destructively add compression to additional tracks
by processing tracks (one at a time) and printing them back into your DAW to new tracks. Due to the inherent latency involved
in this round trip, you will need to time align the newly printed tracks with the original inside your DAW’s editor. Note that the
signal will bypass the preamp tube stage, so the INPUT GAIN and POST TUBE ATTENUATION controls will have no affect
when used in this manner. Therefore, the output level from your DAW should be adjusted to optimize the signal level feeding
the 676 for best noise and compressor performance.
Application Notes:
• This application requires that a normalled patch bay, such as the dbx PB-48, be used. This allows the PREAMP INSERT to
still function normally as a standard insert and regular operation to be maintained when no connection is made to the front
jacks of the patchbay (see below diagram). Note that this same patchbay connection configuration can also be used for
the compressor SIDECHAIN INSERT jack. This allows for easy patching as well as sidechaining of the compressor from
another source.
• Connect the COMPRESSOR / LIMITER output to a line input on your audio interface.
Insert Cable
Unbalanced TS Cable
Normalled Patch Bay
TRS (Tip-Ring-Sleeve)
Out
In
Audio Interface
Send (Tip)
Return (Ring)
Back
Front
Signal Flow
When no connection is made to front panel,
rear panel connections will automatically be made.
Send (Tip)
Return (Ring)
Back
Front
No Connection
Signal Flow