jay - I suppose folks know that Thiel, with its nuts and bolts x no bullshit approach, started every model with serial number 1, which was mated with number 2 , all matched pairs were odd-low.
We kept the design prototypes. My 2.2s are -3 / -4 (final, pre-production.) Early + numbers went to dealers for display. Usually reviewers got numbers in the 100s after the display and pre-buy pipeline was somewhat satisfied. The products were quite thoroughly engineered and required no changes except when production drivers drifted or shifted parameters for some reason, such as different surround, etc. viscosity etc. . . stuff happens. Eventually there might be some refinements which warranted the x.x.1 sub model changes we addressed earlier.
Usually the second generation of a product was called the x.2. But one exception was the CS6, which in the early days of Thiel in-house drivers, received some upgrades to the midrange driver and consequent changes to the crossover, and was called the CS6.1. I estimate the date around late '96 and don't know the serial number of the change. Rob would probably know. I'm gradually collecting such information.
We kept the design prototypes. My 2.2s are -3 / -4 (final, pre-production.) Early + numbers went to dealers for display. Usually reviewers got numbers in the 100s after the display and pre-buy pipeline was somewhat satisfied. The products were quite thoroughly engineered and required no changes except when production drivers drifted or shifted parameters for some reason, such as different surround, etc. viscosity etc. . . stuff happens. Eventually there might be some refinements which warranted the x.x.1 sub model changes we addressed earlier.
Usually the second generation of a product was called the x.2. But one exception was the CS6, which in the early days of Thiel in-house drivers, received some upgrades to the midrange driver and consequent changes to the crossover, and was called the CS6.1. I estimate the date around late '96 and don't know the serial number of the change. Rob would probably know. I'm gradually collecting such information.