computer audio question

There are processors with freon cooling instead of fan which are much more quiet than fan cooled ones. That could be the tweak becides DAC, but as previously mentioned DAC makes the largest difference.

There's been much progress in DAC and DAC chips design since The Bel Canto DAC 2 came out almost 10 years ago.

That said, Your most cost-effective upgrade at this point could be to add something like the M2Tech Hiface USB/SPDIF converter and output your computer's bitstream data through a USB port. This isolates your computer RFI/EMI from the DAC, helps control jitter, and has other benefits which all should help your source sound more musical.

As others noted above, it all begins with a good lossless audio file being output from one of many good software packages such as Foobar or JRiver for PC, or ITunes for the Mac.

The DAC should make a noticeable difference similar to changing phono carts as noted or even simialr to changing players with built in dacs.. If not, then the system may just not be very resolving or revealing to start.

Im using a BC DAC2 ,Imac ,Itunes,with great results!How do you have things
hooked up?

(This was with waveterminal u24,macbook.)

What I am asking is, what specs make a great c.audio setup?
Ie. DAC2 supposedly had great jitter rejection. It sounded like improved CD (vs vinyl)