Thanks for sharing, and congrats to Steve.  What a well earned, glowing review!

I personally love how Herb succinctly says something I’ve also noticed:

“Surprisingly, the Zen Triode yanked more tight bass from the bass-light Klipsch than any other amp I've tried.”

I use the Klipsch RB 61 II speakers, which are just a generation or two behind the RP-600m, and I’ve had to turn my subwoofer down (both crossover frequency and volume) so far, I sometimes have to double check if it’s even on at all. No solid state amp has come close to the quality and quantity of bass my SE84UFO puts out.