Thiel Owners

snbeall- The PCS was introduced in 2000. If yours has a double magnet on the woofer, that constitutes the upgrade. Interesting thing that double magnet. Its obvious purpose is to reduce EMF leakage for use near a video monitor. However, the reduced stray fields also reduce interaction with the crossover inductors and lead wires for more solidity and transparency, especially with complex and/or loud music.

Did you use ERSE Fiol/Q for all 3 speakers ?

I imagine you mean all three boards?

The 2.4 uses a mechanical crossover for the tweeter/mid, so only two boards. The coax and woofer boards each have one coil in the direct feed path and those are the ones Tom selected as targets for foil type.

But I’ve read, and now experienced, that caps in the shunt position can have audible consequences even on the woofer board. Some consider better components in shunts to not result in better SQ, all the more so on the woofer. To be fair, the 2.4 crossover is at 700 cycles (IIRC) and, with the low slopes, that woofer is really covering most of the midrange. But, my point is I will not be surprised to read reports of improved SQ using foil type coils in the shunt position.

Excellent discussion- All.
Reading across other Audio forums, Cardas Rhodium/Silver is the preferred binding post upgrade. This technique is applied to loudspeaker as well as Power amp posts. Silver tends to act as a superior conductor on several Audio fronts. Presentation and sound can portray brightness and or lean. At any rate Silver is very fast sounding. One audition with a Nordost cable or cord is all it takes.

Happy Listening!

Happy Friday and Memorial Day Weekend- ALL.

Interesting to read the 2.4 upgrade issues here and the seeming availability of parts. I'm currently planning a complete upgrade  to my 3.7 XOs . It has FXT boards, loosely wound coils, MKT caps, just as @beetlemania describes. I have spent the last several months trying to source components. Nothing at all available from ERSE or Rob for coil replacement but have found everything I need from Jantzen. Resistors not a problem. Caps a big problem but work is in progress. I want to have this all done by summer end and will post.