API Audio THE BOX - Manual (Page 90)

API “The BOX” Operator’s Manual
90
14.2.1 Program Bus Compression
Use the following procedure to use stereo program bus compression:
1)
Disengage the PGM-CHAN switches on compressors 1 and 2.
2) Engage the LINK switch on the compressor. This will sum the DC gain reduction
control voltage for stereo processing.
3) Adjust for the desired compression and be sure to set the controls on both
compressors exactly the same. This assures that both sides of the stereo
program trigger the gain reduction based on the same values.
4) Refer to section 5.2 Program Bus Compression.
14.2.2 Effects Sends and Returns
Sends and returns for outboard effects processors can easily be used while mixing
using auxiliary/cue sends and masters. Use the following procedure to create effects
sends:
1)
Connect AUX/CUE OUTPUT connectors to the outboard effects processor inputs.
2) Connect the outboard effects processor outputs to summing input or input
channel LINE INPUTS.
3) With the aux send LEVELs turned down, engage the 1/2 and 3/4 on/off switches.
•
Sends will be post-fader so the send output changes with the program
bus contribution. This will retain the perceived “wet-dry” ratio as the
channel fader is moved.
4) The channel cue sends can be used as an alternate stereo effect send when the
CUE switch is engaged. When CUE is engaged, the 3/4 send is routed to the cue
bus instead of aux bus 3/4.
5) Turn up the AUX MASTER level controls to nominal levels.
6) Turn up the CUE MASTER level control to a nominal level.
7) Engage PGM on channels carrying the returns from the outboard effects
processors.
8) PAN the effects return channels as needed.
9) Set the faders on the effects return channels to a nominal level.
10) Use the channel aux and cue sends to create the needed effects processor feeds.
NOTE: To minimize noise when mixing with external effects processions, it is best to
maximize the signal-to-noise ratio in the processor and return its output to
the program bus at the lowest level possible. In other words, set the
processor input/output to unity gain, use the sends to drive the processor
inputs as high as possible without distortion, and set the return faders for the
needed mix contribution. This requires careful gain setting from the send
level, master level, device input/output levels, and return channel fader
levels, but will yield better processor performance and lower noise, especially
when multiple processors are contributing to the mix.