I'm responding to 4est.
I think you're being a bit extreme. I used a borrowed Benchmark DAC with my computer audio files and was quite pleased with the sound. But I'm not sure that it bettered the SA 8001, which costs slightly less. (The Benchmark definitely has a better headphone amp, though, than the headphone output of the Marantz.)
This is the sort of thing, by the way, where it would be very easy, and I think helpful, to do some blind testing. Many CD players have a DAC input, so one could compare the sound of a CD in the player with the sound of the same recording playing back from a computer into the DAC. If retrieving data from a CD in real time is really such a problem, it should be audible.
I think you're being a bit extreme. I used a borrowed Benchmark DAC with my computer audio files and was quite pleased with the sound. But I'm not sure that it bettered the SA 8001, which costs slightly less. (The Benchmark definitely has a better headphone amp, though, than the headphone output of the Marantz.)
This is the sort of thing, by the way, where it would be very easy, and I think helpful, to do some blind testing. Many CD players have a DAC input, so one could compare the sound of a CD in the player with the sound of the same recording playing back from a computer into the DAC. If retrieving data from a CD in real time is really such a problem, it should be audible.