The upgrade is offered in two configurations:
The Full Sub 37 Upgrade: $350 + shipping
Replaces Analog Board (Subsequent sound engine), Right-Panel Board (high-powered headphone amp) and Key-bed with those found in the Subsequent 37. User pays shipping one-way, Moog covers the return shipping.
Key-bed Only Update: $159 + shipping
Installs the Subsequent 37’s upgraded Key-bed for improved playability and swift action. User pays shipping one-way, Moog covers the return shipping.
All U.S. upgrades will be performed at the Moog Factory in Asheville, NC. To request a Sub 37 upgrade in the U.S., email techsupport at moogmusic.com. For international upgrades, contact your regional Authorized Moog Service Center.
Note: Upgrade options cannot be split up beyond the two options listed. It will not be possible to add CV Outputs to the Sub 37. Prices listed are for service obtained in the U.S.–International pricing may vary.
via Reid Baty