I don't recommend NFB 12 for a DT880 user especially. Those headphones need a beefy amp to shine on its best. NFB12 is simply no good enough both as DAC and DAC/AMP unit, especially for such a gorgeous headphone like DT880 600ohm. I share the same opinion about NFB12/11 the headphonia reviewers have. Great package, great versatility, lots of muscle, but simply put, average musicality. But in any case, I think there are no 200$ DAC-AMPs able to reveal at least 75% of DT880 arsenal. I suggest you go for a better sounding DAC performer, like Audinst HUD MX1 or AudioEngine D1 , E-Mu etc, those have lesser amp section, but greater DAC section, then add a good dedicate amp. For instance, a 600$ AMB M3 amp can show you things you could have never expected from DT880s, I mean extremely textured and punchy bass. A LittleDot MKIV can make DT880 sing so analogical and sweet, that even bigger brother, AudioGD’s FUN is a shame in comparison. I can understand NFB12 owners who love their DAC/AMPs as a package, but how many use it as a DAC only, who had also made proper A/B comparison with similarly priced products ? I had the chance many times, and the results were always the same – NFB12/11 more amp power, lesser musicality... If you recommend it for Grado, AudioTechnica, Ultrasone users, I might kip my mouth shut, but not 600ohm bayers, guys ! Those bayers deserve better treatment.
Hope Head-fi admins are not gonna ban me for this post. Just my honest opinion.
Edited by AlexRoma - 10/26/12 at 1:57pm