Hey @ozzy62, you mentioned that you may be considering the Iris reclocker in this thread, so I thought you may be interested in a cool discovery a made in my Denafrips setup.
I'm running USB into a Hermes DDC, then to Pontus II DAC via I2S. The really fascinating thing I ran into was the big improvement in sound quality when I upgraded the power cable on the Hermes. I initially thought the power cable choice on the Hermes would have the least sonic impact of all components in my system, so I have been lazy about swapping it out with something better. But, I found that going from a generic 16 AWG power cable to an Acoustic Zen Krakatoa cable (9 AWG, 6N Zero Crystal Copper + Silver) is an incredible improvement to imaging and focus, and to overall resolution. I was really happy about that because the Krakatoa, although very sharp/acute in details, thins out the low end too much on my system when it's used on the Pontus II, as well as on other components. But it's a fantastic match with the Hermes, fwiw to you.