The Tube Driver is a Tube Distortion and EQ. For the Tube Driver sounds, find a Hiwatt that is more distorted than the sound that you want, and then try turning down the gain to get the sound. You can add an EQ in a stomp slot, if needed.
Sorry, I get what you mean now, ignore the post above, I misunderstood you. That actually sounds like a really good idea. I'm not in front of the Kemper atm, but when I get home, I'll try that out. I wonder if the dynamics will come through in the same way, the Tube Driver oozes harmonics... I'll give it a try though, see how I get on. Thank you!