SubPac + Sonarworks Headphone Calibration + Headphone Amp/Headphones

Okay so this is my setup:

I have Ableton running into my SubPac via Bluetooth. Out of the headphone jack on my SubPac I have a cable running into my 02+Odac headphone amp Input, and then I have my headphones in the output so I can control the volume of my headphones without effecting the SubPac.

The problem I have is when I use Sonarworks Headphone Calibration plugin on my master channel in Ableton, it effects my SubPac too!

How can I set this up so I can use everything without Sonarworks effecting the SubPac?!


Can’t you feed your headphone amp with a separate output from an interface?