Thiel Owners

Thank you Tom

I haven't taken the speakers out yet , not until I start the crossovers upgrad project .

To answer beetemania's question and maybe more insight into the issue.
When playing the IBE cd louder than normal something vibrating 
making a noise like jon-5912's story about sub's virating pan on the oven ( I'm still laughing about that ) . 
The vibration starts at about 30hz and ends about 105hz .
This is not coming from the speaker but from behind it ,
the bass is sound is not affected .
Thanks again for the info about the EBI cd , I printed out the 
freqeuncy and timing chart .

I do have a question for you beetemainia and holco ,
did you change or increase the wiring guage ?
Tom what would be you opinion on increasing the wiring gauge ?
I was thinking of using Cardas 11.5 gauge with WBT fastons .

Until I open the speaker up and inventory componets on the boards 
or I hope Rob can give me info or schematics 
I can only guess at what componts I'll use ,
but I will ask you guys what you used and why .

Happy Monday 
Rob

Rob - I have done considerable work comparing and choosing caps and resistors, both with Beetle and consulting with folks at Thiel. I chose Mills MRA-12 resistors and ClarityCap CSA feed capacitors plus some CC customs for shunts. It is likely that large shunt caps will actually be electrolytics, which I have not chosen. I have not yet done the iterations re which caps matter enough for which price points, etc. But I have chosen candidate caps for each spot. Rob will only have the CC SAs which were CC's best at the time, for the series feeds. My legal status is not finalized for Thiel bankruptcy, so I can't now share schematics, etc. I consider Thiel coils world-class. Do not increase wire size in coils, since their resistance IS critical to the circuit performance. We learned that later CS2.4 XOs were made in China with inferior wire. Rob G might know the serial # watershed and might have Thiel coils. If so, I recommend upgrading at least the series feed coil in the midrange circuit. I am using custom coils from ERSE or Jensen as world-class equals. 

Regarding wire, as I've mentioned, that stock wire is world-class and carefully chosen. There is a widespread belief that sexier wire is better, and I concur in general. However, remember that increasing size will reduce resistance and that the wire resistance is part of the overall circuit design. Eventually I will measure the differences and compensate. For now, I suggest experimenting with different type (such as litz) at the same gauge, especially the long runs between XO and drivers. There is a spot which I perceive advantage without much alteration. Between the input terminals and the XO carries both direct and shunt signal and therefore acts as a choke point, both + and -. I like it thicker, but haven't measured it until I get to work on the XO as a whole.

There is room for improvement via better input terminals. I suggest tight mechanical connections before soldering. BTW, bare copper or silver on copper rocks. Gold isn't that great and brass is poor. CAIG Labs makes a conductive paste with cleaner-antioxidant in it. Keeps non-gold connections clean and conductive.  

Keep us posted.

I do have a question for you beetemainia and holco ,
did you change or increase the wiring guage ?

 From my 5 March 2019 post in this thread:

I replaced every passive part from the binding posts to the driver hookup wire.
Binding posts: Cardas "CPBP" (rhodium over silver), dual for biwire
Woofer in: Cardas 2x15 ga twisted pair plus 2x17.5 ga hand twisted (~14 ga equivalent)
Woofer out: Cardas 2x15 ga twisted pair
Coax in: Cardas 2x15 ga twisted pair
Coax out: Cardas 2x17.5 ga hand twisted
(wire gauge per Tom Thiel recommendation; OEM wire was 18 ga throughout)

Rob will only have the CC SAs which were CC's best at the time, for the series feeds.

Appears that @vair68robert has CS2.7, not CS2.4, so Rob's Clarity SAs are almost certainly incorrect capacitance

Excuse me - I mis-remembered Rob's model.