I, too, made the upgrade from the revel f30 to piega c-8ltd. I confer. A great upgrade, although the f30's weren't too shabby. I use an aloia amp and lector zoe preamp. My current source is the consonance opera audio ref. 2.2 cdp. Great product also, but now am curious about the Nixon DAC. Any other info. you can share on this? Thanks.