Fantastic. For years I've been thinking that the caps that Infinity used were high quality and would last a lot longer than the 30 or so years since they were manufactured. Now we've got someone here who actually did the replacement...and so I need to go down that rabbit hole too, on the Kappa 8s which are way more complex and difficult to work on.
The “old” NPE caps in the Kappa 6s weren’t what I would call cheap. They were fairly good quality +-5%, same as the Mundorf E-caps that I replaced them with. I have the same dilemma with my Kappa 9s. Not looking forward to doing them but now I feel compelled to. I think I’ll do the RsIIIbs first so I have something to listen to when the time comes for the Kappa 9s.