Most probably, His Highness and the other 7 brothers, did not have the Bright Reduction Mod.
What guitar and pickups were used to test these amps? What cabinet and speakers?
"So it was that I came to be the obsessive/compulsive owner of no less than 8 of the II C+ Simul-Class™, Reverb (non-graphic) heads. I hand picked these as being the best sounding amps - for me - out of the thousands of II C+ we made. Out of these eight amps I immediately found my favorite - which I dubbed “His Highness the C-ness” and which I used as a reference model to have our Chief Tech and Archival Guru Michael Bendinelli, copy exactly on the other 7 amps. Everything was measured and scrutinized (pot values, resistors, caps, transformers swapped, etc.) and duplicated, and in the end… all 8 sounded alike.
Regardless, His Highness was my golden reference for MARK II C+ Tone and our R&D reference amp for many MARK Series amps to follow, including the MARK IV.
Over the next two decades I found the need to part with some of these magic amps for studio gear and such and always I gave my close friends first crack at these – but His Highness remains to this day a mysterious, sweet-singing, fire-breathing beast of an amp."