Mackie Onyx 1220i Quick Start Guide - 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 possible to use a software effects processor instead of an expensive external processor. To setup a software effects processor: 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 control the level of the FireWire sends from each channel. • 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 available for your computer. • Pass this through your audio production software 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 plugins 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 computer 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 external processor on the mic signal, sending the result to the FireWire, while still pre-EQ. Quick Start Guide 17