Thiel Owners

@beetlemania, No, I haven’t forgotten your demonstration of subjective opinion. I’ve offered an objective counter point.  As has been said; opinion’s are like a part of one’s anatomy, everyone has one . Congratulations, with your closing reply you’ve managed to demonstrate both.

prof,
My sub gets the signal from  a PX05 passive crossover for the 2.7s. I hooked it up, placed the sub between the 2.7s and haven't done anything since, except upgrade the preamp and amplifier.
Music source is an extensive classical CD collection via a Bryston BCD-3 spinner. Relatively few of my CDs have appreciable low bass. 

Prof   I don't find myself pining for more bass either with the Thiels or the Josephs.
Your experiences may be different but for me the subs really add something that I don't realize until it is not there. It is not so much more bass but clearly hearing the foundation of the song. Once dialed in, there is no going back. Now, if you switch out speakers regularly, it may be inconvenient to go through the trouble. For my large room, the subs were easily integrated, but for my smaller room, I'm still experimenting with determining the best positioning.