Are USHER BE-718'S Compatible with JOLIDA 1000RC ?

I AM CURRENTLY RUNNING:
JOLIDA 1000RC (JOLIDA UPGRADED)
THEILS SCS4'S SPEAKERS
MACBOOK (ALL LOSSLESS)
WADIA ITRANSPORT
CONSIDERING 3 DACS: PS DIGITAL LINKIII / BENCHMARK DAC USB & MUSICAL FIDELITY X-DAC V8.

I WANT TO UPGRADE MY SPEAKERS AND SELECT A DAC. THIS IS IN MY OFFICE WHICH IS 16 X 13 WITH A 14FT HIGH CEILING.

ANY INPUT?

THANKS!