Thiel Owners

I'd guess the 2.4 is the best in some ways.  I've never heard them but it's the last Jim Thiel designed 3-way with an 8" woofer.  I don't know if there's any hard and fast rule but there are definitely advantages to not having huge jumps in driver size.  The 2 series might be an ideal design for a 3-way intended for moderate volume listening.  

jon_5912
Spot On! The 8" woofer is excellent, as well as, the passive radiator. Really does make for a pleasant aural experience at any level in a small to medium sized room.  Happy Listening!

gasman117
Thank You for the update. Good to read that about another PS Audio BHK amp owner. These products are really gaining traction in the customer base. It seems that both Mono and Stereo amps are favored compared to the competition. A few more PS Audio owners over on Audio Asylum.
Happy Listening!

jab
Good to see you again. Yes, it is noted that VAC and VTL are well-suited for Thiel loudspeakers. Thank You for citing your preference. What other gear is in your system?
Happy Listening!

beetlemania
Thank You for the CH (RIP) note. Ayre and Pass Labs integrated amps are well documented with the CS 2.4 loudspeaker. It is a simple matter of listening level(s) and brand taste(s).  Hope you are having fun on the XO project.
Happy Listening!