Thiel 2.3 vs 2.4 the real difference

What parts can you upgrade from 2.3 to 2.4? The passive radiator is oblong on the 2.4 and round on the 2.3, right? I know there is an upgrade on the 2.3 that I haven't gotten which includes new coaxial drivers and changing a few parts in the crossover network. An older Audiogon thread says the upgrade is an improvement.

The tonal balance is quite different between the 2.3 and 2.4. The 2.3 still has the older Thiel hyper-analytical sound; the 2.4 retains the best aspects of that sound but leavens in a degree of warmth missing from older Thiels. Certainly worth a listen in person-- if going back to Thiels (I had CS2s for 16 years before moving to Vandersteens) I would definitely choose the 2.4s: they're a kind of middle ground between the older Thiel sound and the newer Vandersteen sound (perhaps a third of the way over towards Vandy warmth).

Bufus
'Upgrade' I mean selling 2.3 buying 2.4. Hope you got it now..

I have CS 2.3s that I upgraded a while back with the improved drivers and crossover parts. It really did not sound "more musical" as Shari, with Thiel, said it should but it did seem a bit more 3D and palpable. I have listened to the CS2.4s in two different locations and they sound a LOT like mine. Hard to tell if they are any better without putting them in my room, they sounded that close. I love how many people hear a speaker in a foreign room and then pronounce judgment on minor changes in sound. For what it is worth, I tool think Thiel can be bright with lots of CDs but, when I check out the competition, Thiel still carries the day. I keep checking bright CDs on my Sennheiser HD580 headphones and they often sound even harder on those.

Tim McTeague