Found this thread after some googling. I bought that Oberon off ebay back in Nov. Figured it was worth a punt at the price. Very pleasantly surprised with it indeed, preferring it to my Brio R in my system. Didn't really get on with the phono stage when I tried it - that could take your head off. It has its limitations - the pre stage is noisy (I assume psu noise) and has dreadful low level channel matching, but the balance control comes in very handy there.
I'm actually using it with only a single source, into the CD direct input, which bypasses the noisy pre section. This is much cleaner and you get much more control of the vol pot.
Looking under the hood there's a healthy selection of Elna caps of various types.
I'd love to see a circuit diagram to compare it to the claymore, and so I can see which cap types are used where in case it needs a recap at some point. Don't really want to take mine apart to go tracing tracks.
The one in the opening post looks like an Oberon Classic from looking at these photos:
http://www.diyaudio.com/forums/galle...php/photo/5990
James