gee, i love jeff rowland gear- i have a JRDG-consummate preamp sitting in the closet right now. having said that, i just replaced an EMM-Lab DCC2-SE with a levinson 326S. the EMM pre-dac sounded just a bit sterile to MY ears- but this could have been more a synergy issue with my system than anything else. however, i couldn't be more pleased with the added smoothness and touch of sweetness with the 326S. i also have ML-33H amps, which i refuse to dump- no one can, with any degree of credibility, come up with something that is going to make better music (other than tubes, of course).
and no, i am not interested in FM acoustics or something else that costs enough money to give me a stroke or a heart attack, thank you very much. anyway, i don't think that stuff is as good as the swiss say it is, with all due respect. there is only so much room on the head of a pin for angels (or demons).
as for the ARC-3, i think ??? nothing, it is supposedly a great piece. However, system and room synergy is going to swing things in ways no one else but you are going to have to contend with.