Thiel Owners

@holco Regarding coils, as Tom noted, you need to verify whether your boards are point-to-point on masonite (made in Lexington) or PCB (made in China by FST). The coils values are slightly different for the latter to account for subtle changes in that environment. The layout you have is for the PTP and the PCB values are somewhat different.

I recommend upgrading all resistors to Mills MRA including that 16 ohm. Not sure why you have the one in parallel. Is it becuase you can’t find the correct value? Sonic Craft has all the correct 2.4 values. But note that the “Mills” are older and “Vishay Mills” are newer after Vishay bought out Mills. You’ll have to mix and match the old and new but that is of no issue. 

That 43 uF cap is a subfeed and deserves attention. That is a tough value to get in a quality cap. You can get that value in ERSE Pulse (Tom had this option on his short list), or run a parallel (eg 10 + 33) higher quality. Tom has a custom Clarity CSA for that cap, not sure whether/when that might become availability. Note that you can go with a lower voltage for that one as it is downstream of that 16 ohm resistor.

You might also replace those big 100 uF electrolytics with ERSE Pulse. Tom is getting a custom low voltage Clarity to replace those but, again, unsure of its availability. ERSE could also be a decent option for the woofer caps (33 and 56 uF).

Thanks Tom & Beetlemania :-)

For sure it's the PCB version, resistors are equal but there are no marks on the coil's, do you guy's know the value of the changed 0,72mH coil on the PCB version? I wil also look for the other parts that you reported.

Can't find a Mills 4ohm resistor in Europe that's why I changed them to a parallel 4R7 and 27R resistor with a total result of 4R003

See photo,
https://www1.picturepush.com/photo/a/16063392/1024/Thiel-CS-2.4/20181101-192450.jpg 

Happy Friday- ALL.

@holco Your PCBs look a bit different than mine in that you have different brand caps. Mine are CYCs other than the Clarity SAs in the coax feed; yours might be Solen? Regardless, your cap quality looks superior to mine other than those Claritys. My CYCs are MKTs whereas your caps are labelled as MPTs. Also, the coils appear to be higher quality in that they are more tightly wound. Finally, the board itself doesn’t appear to have any labels.
Here is the backstory on the coils. When I upgraded my resistors, I noticed the PCB had the parts’ values printed on the boards. I wrote to Tom Thiel:

I forgot to mention an interesting artifact I noticed when I replaced the resistors yesterday. The PCBs have all values labeled. On the woofer board, instead of inductor values 0.72, 0.3 and 0.06 mH per schematic and layout, it has 0.65, 0.22, and 0.06. On the coax board, instead of 6 and 0.15, it has 5.78 and 0.13

Tom investigated this and discovered the PCBs were sourced from FST whereas Thiel traditionally made everything in house using point-to-point. Apparently, the modified values are to compensate for the PCB environment. But maybe it’s even more complicated given that you have a different generation PCB than me? My SEs are among the last built. The seller claimed they were built in 2012. I’m guessing your 2.4s are older. Perhaps Tom can add his thoughts about your coil values.
My rebuild will be point-to-point on Masonite and I’m going to use the coil values as indicated on the layout and schematic (I plan to build completely new boards other than I will reuse the MRA-12s). If you are keeping your PCB, you might need to use the modified coil values if upgrading.

pwhinson

I had purchased only the spikes and not the outrigger support stands
from Coherent Source ,
I used the new spikes with the original locking nuts .
Now the spikes penetrate the carpet
The outrigger stands look great but cost to much for me .

Rob