Yeah, #12 is a sweet looking machine! A beautiful example of inspired Northern California technological innovation and the formative years of Alembic, Inc. That was an exciting time!
Yes, Ron is a wizard, this is true.
Friends, my comment about hum was not meant to infer that the older instruments are somehow compromised. The huge, open sound of the Series Alembics is in part due to the large single coil pickups. If they had used humbuckers it wouldn't have sounded the same. (Hey, I'm not putting these down either, whatever works for you is fine by me!!) But like a Fender Telecaster these single coil pickups tend to also hear whatever electromagnetic interference may be flying around the area and amplify that along with the sound of the strings.
The brilliant scheme that Ron came up with to deal with this non-musical component of the signal was to use a shared hum canceling coil between the pickups and include accessible hum balance trim pots. A truly innovative idea! But because the two interacting coils are physically separated by more than an inch, they don't hear the EMI or RFI in exactly the same phase and thus can't perfectly cancel 100%.
As it turns out, each bass is also slightly different electronically, or maybe magnetically... The exact placement of the pickups, the metal plates, screws, and maybe even the wood and glue are all factors in how much noise can be rejected by the circuit. Bill and Ollie may be lucky and have extra quiet instruments - or extra quiet environments. (I used to work in one poorly shielded studio here in LA where the lobby was the quietest room - so I would set up and play from there...)
Recently, Ron had another stroke of genius and found a way to fine tune the hum rejection for each individual instrument further reducing the noise floor by something like 20dB. These must be the quietest single coil guitars on the planet!
So the context for my comment was simply that the progress of Alembic instruments, their construction, design, and circuitry, has been linear. The NEW instruments are AT LEAST as incredible as the old instruments and noise rejection has in fact improved. Again I am only a player, a user of these great tools, I am not a collector and can't really think like one. So #12 might be worth a million bucks but only to those of us who hold it in that light. If I hit the lottery I would probably order a few new custom Series IIs before I started buying up #1 - #10 Alembics. But that's just me!!!
Best to all,
Jimmy J