Hughes and Kettner amp question

[Diamond Dave]

I seem to remember that, a long time ago, Hughes and Kettner made a combo amp where, upon powering it off, the control knobs would all retract into the panel face making it completely flush. Im guessing this was to protect them from getting knocked off during transport. All I remember is it looked cool AF and I wanted it immediatly. However, back then it was far out of my monitary reach.

I kinda wanted to see if I could get one now to add to my assortment, but I cannot seem to find any info on the web if any of their combo amps still do that or not...or if they EVER did. Am I mistaken on the brand? If not, anyone here remember which model of H&K combo amp offered this feature?

Any help greatly appreciated.