Mackie onyx 1220i Quick Start Manual page 17

AUX SEND 1-2
A direct copy of the aux send 1 and 2 outputs can be
sent via FireWire to your computer. This makes it pos-
sible to use a software effects processor instead of an
expensive external processor.
To setup a software effects processor:
• Set up an aux send in post mode, by pressing
the post switch in the aux master section.
• Aux send FireWire outputs 13 and 14 are avail-
able for your computer.
• Pass this through your audio production soft-
ware running effects plugins.
• Return the processed output to mixer channels
11 and 12 (input switch set to FW 1-2).
• Alternatively bring the processed sounds into
the control room (engage FW 1-2) and add it to
the main mix (engage assign to main mix).
• You can even use the computer as two separate
independent mono in, stereo out processors.
Have aux 1 go into one plugin, and aux 2 go into
a different one. The stereo outputs of both pl-
ugins are combined back into the stereo stream
coming back to the mixer. Again, performance
will vary based on system hardware.
MAIN MIX
The left and right main mix is always available on
FireWire channels 15 and 16 to send to your computer.
For example, you can record the live performance main
mix onto your computer. The output level to your com-
puter is not affected by the main mix level control.
Modifications:
The following FireWire modifications can be done by
an authorized service center. Authorized service centers
may be found online at:
www.mackie.com/scripts/service_centers/search.asp
Please contact our technical support department if you
are having trouble finding an authorized service center
in your area.
Post-Insert FireWire Sends
The pre-EQ channel FireWire sends are pre-insert,
but the circuit boards can be modified so that they are
post-insert instead. This allows for the use of an exter-
nal processor on the mic signal, sending the result to
the FireWire, while still pre-EQ.
Post-Fader FireWire Sends
The post-EQ channel FireWire sends are pre-fader,
but the circuit boards can be modified so that they are
post-fader instead. This allows the channel fader to con-
trol the level of the FireWire sends from each channel.
Quick Start Guide 17