When I wanted to try out the different amp models in the HD500 thru my DT25, it drove me crazy with the volume differences.
So I went through each model and tried to find a nice drive level and adjusted the channel volume so that each amp model was reasonably close in volume.
I created a chart of the different models and settings that got me close. Also, I keep the mixer block at 0 db and panned 33% L&R. I use the Input 1= Variax Input 2=Same when I run into my DT25.
Attached is my chart. I would upload the setlist, but I'm not sure if that can be done here or has to go through Custom Tone. I also made a section at the bottom for the different overdrives. Just like the amps, if you add drive, you need to bring the volume down to maintain the same volume level.
I wish these were the default settings for the amps! Why so many amps and amp pre's default to 100% channel volume is a mystery that will never be unraveled. And it has scared the crap out of me too many times...
So here it is. Criticism is welcome!