If there is a satisfaction and return policy on the D100s, I would take advantage of them, especially when you are trying to invest a large part of the system's budget on high end speakers.
Although I do not have a speaker such as the Cliffhanger Bulldog, I do have a set up that the people from Soundstage used to play at the same time when they were comparing the Cliffhanger gear (back in the early 2000s.)
I have a Gershman X-1 along with the SW-1 passive subwoofer stands.
These speakers sound great with at least 100 watts+ of tube power, 200 watts+ of SS gives it full kick. The only digital I have tried is with the Sharp SD-EX111, which supposed outputs barely 20 watts at 8 ohm, but with the Sharp, these speakers sounded INCREDIBLE. It was not supposed to be, but I did and I got more than loud volumes with finesse and outstanding control, more than once could dream.
Digital power is different, I say 20 watts are minimum.
Check for satisfaction policy on the amps....the speakers, I am sure are clear, clear winner, but ONLY with the right amplification.
Paul K