From what I remember, those are an excellent speaker, and it sounds like you've made a very wise choice. IMO, they are among the "intelligent choices", meaning high end, but still great value as well. Enjoy!
FWIW, The Intuitive Design Summit Loudspeakers have astonishing detail but do not sound harsh at all, especially when the Dodson 217 Mark II D DAC is in the chain. They are fairly efficient, something like 89, 90, or 91 dB, but definitely perform better on the low end when driven by a powerhouse amplifier. With a smaller amp, the low end wasn't nearly as impressive, but the high end detail was relatively less affected. With respect to soundstage depth, these have it in SPADES. These are speakers which sound very good to excellent with decent equipment, but sound phenomenal when the front end components are sufficiently high end (in the perfomance sense rather than just the expensive sense).
