Bacobits,
Of course the EE dac is built to a price point. All I can say is that I've never heard a stock dac <$1,000 that sounds anywhere near as good. Obviously, I've not heard them all. Nor have I seen anything at that level with the build quality, both inside and out. That said, the judicious selection of replacement chips costing > 20x as much does bring a significant improvement. This is not a situation of throwing shit up against a wall and seeing what sticks, but rather looking at what the specific requirements are for their intended function and choosing components that bring both measurable improvements as well as subjective bliss. The I/V chip was chosen specifically for its low noise, accuracy and speed, as well as its subjective character. Lawdy, what deep, tight bass, from both tube and solid state outputs, among other things. The output stage opamps were chosen for its extension and lack of sandstate grit. These characteristics come at a price, literally.
FWIW,
Paul