Wow, didn't even know about the x-version. Thanks :)Just read this interview with the founder of Tortuga Audio - A very enjoyable read:http://audioxpress.com/interviews/qa-engineer-takes-a-chance-on-start-up-audio-venture/
This is one of the reasons I've been looking at the NFB-28. Relay resistor network with a volume knob seems very nice. I will be trying out a NFB-10.32 with my Yamaha M-4 tomorrow. Any recommendations for other DACs with an analog preamp stage?
What are you going to use as preamp? Master 9 could be a nice start and if you decide to add a power amp later, you would have a very nice preamp.For something more powerful some of the Vincent offerings might be interesting: http://www.vincent-tac.de/