It will easily drive the Klipsch to ear harming volumes, but depending on your room size you may not get satisfactory volume for the Super Pensils at 92dB.  I would talk to Steve about that.

Tom, our listening rooms are pretty close to the same size so you will get a good feeling this weekend if you drive down.  My listening position is in nearly the same spot at yours as well.

I really think it is driver/cabinet specific.   With Raven's MG944s at 94db, I can drive them plenty loud but with the El Camino's which I would guess are 91db, I could drive them to listening volume but needed more to get the most out of those speakers.   I have a pair of DNAs that I built and those are just 89db, but they are similar in output to the El Caminos.  I switched drivers in the DNAs because they didn't play loud enough and to another driver still rated at 89db, and they played louder.

So I'm not much help here other than to say I think you need to listen to the amp with your speakers.  Hopefully the guy will let you hold off committing till the weekend.