Thank You - tomthiel
for the details and insight into models CS 2.2, 2.3 and 2.4 loudspeakers.
Another +vote for the CS 2.4 as I have never spent time w/ the 2.2 nor 2.3 models. The Passive Radiator was a stroke of genius via Mr. Jim Thiel. This driver really adds something very special to the sound, presentation, to the CS2.4 IMO. Happy Listening!