Thiel Owners

jafant - The 2.4s I bought from oblgny (thank you) are #s 2093, 2094 which is about halfway through the product life of 2300 pair. I'll be interested to see the particulars of their crossovers when I get inside them.

halifax - your #s 293/4 are the highest #s of old LEX boards I have seen. Rob G had estimated around # 250 was changeover to FST / China.

If and as you consider new boards, it would be best to layout new boards to accommodate larger parts. All of the upgrade caps are larger than stock caps.

I suggest sitting with what you have for now and keep in touch about further refinements later. I have a hunch there's plenty to love with what you have now.

@tomthiel 

I'm guessing that your 2.4s (#s 2093, 2094) were built around 2005.

My guess is based on the fact that when I purchased my pre-owned 2.4s (#s 2951, 2952) in April of 2011 from Audio Consultants, based on the provenance (they had been originally sold by Audio Consultants, and then taken back in trade for 3.7s) they had 5 years remaining on their original 10 year warranty).  So that dates production of my pair to most likely 2006.

There is a set of new 2.3 coax drivers on ebay if anyone is looking

Tom, jafant and beetle thanks for the input, you all have been super helpful. After all this input I feel like the best option would be to take my time on any upgrades, the speakers work really well and I love what they do with well recorded albums. My reference album lately has been Goldfrapp - Felt Mountain, I would recommend anyone pick this album up up to hear what these speakers can do, I have both the vinyl and CD both are very well done. It is a very revealing album. Probably one of the best female vocalist albums of the early 2000s. It's haunting mix of real and electronic sounds really allows these speakers to make some magic happen. If anyone is a fan of portishead this would be a really good addition to your collection.

With the factory crossovers I am tempted to just replace the resistors, but I think I will slowly build some completely new boards so I can more easily accommodate the larger size of upgraded caps and not have to worry about cramming everything on to the factory boards. I dont want to get into the factory boards and mess them up.

halifax

If you decide to use the original boards and replace the resistors use this site for parallel pairing  sengpielaudio.com/calculator-parallel.htm   .

I would also recommend replacing the electrolytic caps with Mundorf electrolytic caps .   If you measure your film caps you might be able to upgrade them with the new Clarity Purity caps . 

Good Luck