Soundsmith. I didn't know the vendor rules, however, it's not relevant to my query, so I blanked it out.

I have had a B&O 4002 since the 70's. Rebuilt once at S*****smith. I am thinking of adding a second one as a backup. There is also a N.O.S. B&O  9000 available. My question is, are the innards on a rebuilt 4002 better than a brand new 9000?