Congratulations and nice to know that you are pleased with your NFB10 ES and HE6 combo. I am still searching for an amp. to drive my HE6 and later a LCD2 and this has been giving me sleepless nights thinking about what's best. Might take the route of Oppo 95 (source+DAC)--> Augio-gd Phoenix --> HE6/LCD2 but keeping options open. Ultimately I might settle for a Woo.
pheonix wont drive them as well as nfb-10