I am very satisfied with the Channel islands DAC even though I think Wayne at Bolder has done a heck of a job modifying the ART/Dio. I finally bought the power supply, but made another tweek to the system at the same time. The result is a lowered noise floor, and better low level detail. Whether it was the Power supply or my homemade ceramic disk tweak, my system is better, and i have found the Channel island equipment to be great.
Brad