tmsrdg - patience is the key.
The 3.7 is late model classic Thiel. Its ’needs’ are far closer to ’wants’ than earlier models which have far more real problems, upgrade potential and far more head-count in the field.
But to address your question, there will be a multi-pronged development and delivery. Each model will have its own upgrade protocol. Your 3.7 drivers are ’settled’. Your crossover will have some user installable upgrades. Specifically some of your Yellow Styrene 1uF bypasses will have replacements by way of custom Reliable multi-sectioned caps, in either aluminized or all-copper, as well as various non-inductive resistors. At some later date those upgraded parts can be re-used in a new serpentine XO layout, either inboard or outboard.
This first-offering upgrade will also include a set of wavelaunch films which can be applied by an adept user / or via some other arrangement - as yet unknown.
Similarly a new internal wiring harness will be available to be routed through the existing soft tubing, possibly with additional hold-downs. The new cable has less structure and depends more on mechanical support from the cabinet.
These examples are illustrative of future vision. At this time we are starting with training wheels with the SCS4, either extant, or new higher-grade specimens. Lessons learned there will be applied to next-step offerings, addressing older models with larger problems, such as replacement drivers and generally more room to grow. CS1 through 5 models will get early attention, starting with the CS3 / 3.5.
This information is a peek behind the curtain. There is ongoing work being done and many moving parts.
Cheers, Tom
