Very strange. Here we have one of the most well-ragarded dacs ever, especially for the price, and here we have 7 out of 7 responses that, while acknowledging certain positives, on balance convey a strong negative impression. This is in marked contrast to every other forum that has at least a 95% positive evaluation, as well as rave reviews by every professional reviewer and publication that has reviewed the unit. As an owner of a Benchmarkd DAC1 for 3 months, I strongly agree with the latter group and am amazed at the unit, especially for the price.
What can account for the difference? Firstly, there seems to be developing a small backlash against the DAC1, by those who resent its success or possibly fear repurcussions on more conventional manufacturers. But, putting that aside, there could be several other reasons:
1. Comparable comparisons-- Using a $15,000 to $32,000 dcs for comparison is not exactly a fair test. Or, an $8,000 Lavry. But the Benchmark comes very close anyway. But, the Apogee or Jolida are not even in contention, IMO.
2. Effect of lack of jitter -- Jitter can muck up the bass and midrange, making other dacs seem fuller when what you are hearing is distortion. The DAC1 is so clean that other units may seem smoother, or more "analog" or "musical", especially on more poorly-recorded cd's. But, once you get used to no jitter or distortion, you can't go back to one of the other dacs. The lack of jitter can also make the unit sound "thinner" at first. again this is distortion. And, bad recording can sound that way since the unit tells the "truth", but good recordings sound superb.
3. "Bleached, 2 dimensional,lack of dynamics, bass extension" -- No explanation, except for "2" above,since this is at variance with the rest of the world. Almost unanimously, I and other reviewers say just the opposite -- dynamic, deep and powerful bass, wide soundstage. All I can say is try listening for an extended period with a good recording.