Why do modern DACs over $1,000 sound different?

I was thinking of picking up the new Benchmark DAC2 HGC, the W4S DAC-2, or the Anedio D2. They all seem well engineered, spec out exceptionally well (beyond human hearing), jitter is negligible, and they use the most modern chip sets and techniques. All three sell direct and seem to put the emphasis on design and not athletics (so you’re not paying extra money for markups and audio jewelry). Do they or any well engineered DACs beyond this price range actually sound different in blind testing or is it more brand preference? I read reviews using adjectives such as “analytical”, “detailed”, “dry”, “forgiving”, “bright”, “neutral”, “transparent”, “emotion”, “dark”, “thin”, “disappears”, etc. I would think that they are either accurate or not, so can this really be? I would appreciate some informed comments as to what drives the sound of DACs and any recommendations. Thanks.