Spica Speaker Project Links

I am looking for projects to publish, if you have something you think belongs here,
!

Crosby Spica Mods / Crosby "Strads"
The Crosby Mod was perhaps the most well known production period mod to the TC-50. Crosby was a "A High End Audio Specialist" located in Hobbs, New Mexico. They were well know for modifying a variety of gear, but perhaps best known for their Quad ESL modifications... (more)

Basel Audio Lab - TC-50 Restoration Project
Site includes a Technical review along with the measurement, analysis and restoration of two sets of SPICA TC-50 Loudspeakers by Basel Audio Lab.

Carls Custom Loudspeaker - TC-50 Restoration Project
Project includes tweeter replacement and crossover updates by Carl's Custom Loudspeakers.

GR Research - Spica TC-50 upgrade
Replacement tweeter with matching crossover with significantly upgraded components in a kit. They also offer components to upgrade your existing crossover if you are just trying to replace aging components. There has been much written in the boards about this tweeter swap and the crossover kit and while it may produce a good sounding retrofit, the considered opinion is that the finished product will no longer be a time aligned design.

Rejuvenating Spica TC50
Owner troubleshoots unballanced volume levels and walks through crossover repairs. Great pics!