OK, I bit the bullet and bought a pair of Klipsch RP-160M speakers (at a good sale price). I have been breaking them in and comparing them to B&W 685s as driven by my NAD 326BEE. Thus far comparison made playing system on back deck, thus no room reinforcement. I intend to make comparison in my dedicated room as driven by my main system soon. As a general comparison there are the obvious tonal differences with the Klipsch having a more forward upper mid/lower treble. I believe the B&Ws to be somewhat more refined (again outdoor environment). As driven by the NAD I felt the Klipsch represent themselves well. That said, there is much competition between budget speakers at their asking price of $440.
I bought the Klipsch based on claimed sensitivity of 96dB. No way they approach this value. Based on listening they seem not much greater in sensitivity to the 685s, maybe 90dB. I have driven them with the Dynaco ST-70 to reasonable levels however remain looking for a speaker easier to drive. I know sensitivity is often overstated by manufacturers, but to this degree. Wonder how it was measured?
Anyway I will continue to keep everyone posted as I continue down this road.