Been using the Dual Core 2.0 as a Dac, preamp and room correction for about a year. Very highly recommended with a high quality 12v battery or linear power supply. My system is a 2.2 rig and going with the DNM HFTN cables as upgrade is worth every penny. Do a search there is a lot written in other forums about this amazing piece of gear.
Also using the 8033c in my HT rig.