Question

I'm trying to figure out how to most easily control the preamp levels on my Quantum interface from within Logic Pro X and Mainstage. I want to automatically set the preamp level for each track in Logic or patch in Mainstage, for the mic or instrument used for that track/patch. Can someone give a quick rundown of how to do this easily or point to directions?

Answer 1

Using the Embedded MIDI Preamp Control you can address the PreAmp Level Controls by creating a new MIDI Device in the Environment in Logic (Advanced Function, see Logic User Manual on how to use) and then mapping that to a channel for automation. 

Copied from Page 12 in the Quantum User Manual

3.3 Controlling Quantum Mic Preamps with MIDI
Quantum microphone preamps can be controlled from the front panel, UC Surface, or Studio One. If you configure your Quantum interface as a MIDI device inside your DAW application, you can also control trim and phantom power from within your DAW environment and store those settings with your session. Below is a chart explaining the MIDI controls for your Quantum preamps:
 

Preamp MIDI Channel Trim Level Phantom Power ON /OFF

• Preamp 1 Channel 1 CC #7 CC #14 (0 to 63 = On, 64 to 127 = Off )
• Preamp 2 Channel 2 CC #7 CC #14 (0 to 63 = On, 64 to 127 = Off )
• Preamp 3 Channel 3 CC #7 CC #14 (0 to 63 = On, 64 to 127 = Off )
• Preamp 4 Channel 4 CC #7 CC #14 (0 to 63 = On, 64 to 127 = Off )
• Preamp 5 (Quantum) Channel 5 CC #7 CC #14 (0 to 63 = On, 64 to 127 = Off )
• Preamp 6 (Quantum) Channel 6 CC #7 CC #14 (0 to 63 = On, 64 to 127 = Off )
• Preamp 7 (Quantum) Channel 7 CC #7 CC #14 (0 to 63 = On, 64 to 127 = Off )
• Preamp 8 (Quantum) Channel 8 CC #7 CC #14 (0 to 63 = On, 64 to 127 = Off )