I am thinking placing an order for a NFB-12 to drive my tube power amp like Dynaco ST-70, wondering if anybody tried that with good result. I know the EE DAC is probably a more expensive DAC, but love to hear someone that have a chance to compare the two. The reason that I wanted a NFB-12 is so I can listen to decent music in work while at the same time having a semi portable pre-amp during weekend.