Topic: Using loop back to clip converters?

Good morning all and happy Friday!

I want to take advantage of the oversampling of my converters in my UFX and would like to gently clip the audio during mastering using my UFX. I'm hoping this can be accomplished using the loopback feature in totalmix and recording in my DAW.

My question is what's the best way to achieve this? Can I use total mix to do this "in the box" or do I need to send it to some stereo outboard gear and bump the signal up externally?

Thanks so much for your help in advance.