"Which SUT are you using with the Hyperion ?
Have you compared many ??"
My current favorite is the Consolidated Silver Wire SUT. I also have a Bob's Devices. Both are external and are 10:1. I also had an internal one in my previous Conrad-Johnson phono stage. That covers the last 10 years or so. I've been at this a long time and have had others, Ortofon, for example, Denon too, years ago, but with different cartridges and TT/arm setups that hardly are pertinent today. I should also mention that for several years now I have settled on Audio Sensibility Statement silver interconnects. Interconnects in and out are pertinent and consistency is important in evaluating differences.