The ultra wasn’t clinical to me because of its weird mid quality (which was more on ch2), but I didn’t like that quality either. It was just this overall filtered and disconnected character in feel and sound that most recent amps just suffer from unfortunately. It was actually quite a versatile amp with a very solid clean and crunch too, but didn’t really do any sound better than 7/10. The Helios I had was the polar opposite. It was organic, raw and warm for a non-vintage amp with a pleasant woody character, rich growl on powerchords (similar to the growl of a good late ‘70’s jmp2203/4) and a connected feel. That was a good amp and not actually Bogner like to me. One of the closer modern amps I’ve had to capturing vintage character. The clips of these amps maybe mislead a bit in places
with the ‘90’s 101B’s I tried at least, while they can get plenty cutting with their very reactive presence, treble and various eq controls, the uppermids are just inherently smooth and IME didn’t grind or get aggressive in the same way as typical ‘70’s and ‘80’s Marshall’s do in the uppermid region. They had to me very much still the Bogner character where the interesting tone was centered more in the lower mids and so I think that’s I why it still comes off as dark, fat, chewy but cutting. Your clip has that sound I remember of it too as did Blake’s from what I recall