Thiel Owners

Jon - I haven't had your experience, but I can comment.Broken leads are usually caused by excessive excursion.Your 2 volts AC at the tweeter and woofer with a 60Hz test signal is improper. Tweeter should be near zero.Caps and resistors usually blow open, not short. Hmmm. Shorted feed cap or resistor would cause direct feed and tweeter destruction.If your XOs are on PCBoards, the short might be in a trace, not component.
Rob Gillum at Coherent Source Service might help troubleshoot

Tom - Thanks for the feedback, I think the crossover must be what is described as point to point.  All of the components are soldered directly together on the back of the board.  I don't see any other possibility than one of the three components has a short.  There is another path but it goes through a resistor, pair of capacitors, and coil in series.  I'm guessing it's some sort of secondary path to deal with some specific problem.  

It's really annoying.  I guess now I bust out the soldering iron, take the components off the board and measure them.  I have a hardware store multimeter that won't measure capacitance.  

Picture of cs2.4 crossover with same type of construction.
https://www.pinterest.com/pin/333477547409233370/

Jon - your pic shows PC boards which are all too easy to burn.PM sent

Here's a picture of the other side.  While it is on a PC board, there isn't really any significant tracing.  All of the components are connected via solder except one short spot on the left.  That appears to be part of a secondary path to the tweeter that I'm guessing is supposed to carry a very small signal.  It appears the importance of the printed part is mainly to help with assembly.  

Viewpoint back of crossover:
https://imgur.com/e3YK20g

Forgot to mention serial number 259 and dates on backside of tweeter domes 3/06. (both the original tweeter and the one I bought a few months ago, and written by the same person.)


back
https://imgur.com/a/tt0o7XU

front
https://imgur.com/IUIyi2A