velocityofhue,
I realize the BAT VK600 amp is much older than the Pass 150.8 and understand the power difference. From your assessment what are the sonic differences between the two as I've found BAT to be a viable amp to mate with Thiel's.
I'm considering their REX 500 in mono or even their newly released REX 300 in mono. From my experience with Thiel, amp selection is as important as Thiel model selection.
ig316b,
Maybe Tom can jump in as to the evolution of the coax from CS2.3, CS6, CS7.2, and finally CS2.4.
To clarify to members engaged in this thread ig316b already has the Thiel SS2 subs. Since he already made this investment the discussion went in the direction of easiest upgrade path for him. He noticed the improvement with the CS 7.2 coax over his CS6. That being the case then getting a pair of 2.4 with the SS2 would be his best choice.
Yes subs will not integrate as smoothly but will have better bottom end. The coax is better also.
The other variable we discussed was the upgrade path. The CS 2.4 crossover is simpler than the CS6 so cost would be less and with less parts dynamics improve as well.
Throw in Tom's bag of full upgrades and you've scratched that itch you've had for some time.
As jafant mentioned the " CS 2.4 is a Honey of a loudspeaker".
The room I have the CS 7.2's in is a joy to go in. Not a typical room to say the least. I'll see if I can upload some images to share.
I have in my possession the upper midrange notch filter upgrade Tom designed. I will get it installed soon and report back. This targeted upgrade is for the 100uf electrolytic back in CS7.2 upper midrange. This notch filter, to a lesser degree, is implemented in other models as well.