Maybe I wasn't clear, I posted that right after getting up this morning... I meant the E7 does not sound quite as good as a DAC, as the Sansa Clip+ does as a player. Comparing the E7's headphone out with the headphone out on my AudioFire sound card shows that it's quite congested in comparison, narrower soundstage, worse stereo imaging. Playing the same song over the Clip+ and ABing it with the USB-E7, the Clip+ sounds better, it sounds very similar to my AudioFire. That's what I tested so far, as far as USB is concerned. So far the E7 performed like a medium nice USB sound card, not like a really good one.
BUT: Used over the analog line-in the E7 does sound better than when it's used as a DAC. Using the FiiO E7 with the Clip+ and 16 Ohm phones keeps the sound exactly the same as the Clip alone, without using the E7. Meaning, the E7 is as transparent as the Clip+, in that case. I volume matched both to 0.1dB, and Clip + Hippo Shroom sounded the same as Clip + E7 + Hippo Shroom. That's a nice result already, since the Clip+ is a really good performing player.
I don't doubt that the Teclast/Nationite is a solid performing (or at least sounding) player either, but the hype is certainly getting out of hand. Just today someone posted in another thread that he can't hear a difference between a S-Flo and a Clip+. That's just one opinion, same as other people seem to have the opinion that it's the best sounding player ever. I doubt that. I don't doubt it's good - but I doubt it's a lot better than the next best thing. I know some people are also getting it for its line-out, and for other very valid reasons, but I just don't buy into the hype. I've heard lots of players, good and bad, and I would be very amazed if the gap between the S-Flo (or Hifiman or AMP3 or RoCoo or whatever) is really big to the usual solid performers like Sony, Sansa, iPod and so on (Cowon don't count, they only sound decent with sound enhancements). I will be getting at least the AMP3 and the RoCoo soon, so I will know for sure what they do in reality. Don't know if I get the Teclast... but that's all quite off-topic for this thread. Sorry for the long post.