Using a computer via Firewire source is pretty good, but we have experienced another major step up in sound performance when using the MAN301 via AES/EBU to the Medea+. The sound staging, detail and depth seems to be much better, and with less high frequency noise. We tried a Macbook Pro, a Mac Pro and a Mac Mini via Firewire, and in every case, AES/EBU from a server was superior.
Overall, the Medea+ outperforms the MAN301's built-in DAC (by a very wide margin), which in turn outperforms the DAC202 (by a much narrower margin). The Medea+ brings far more resolution and detail, without a hint of etch. It's a major step up, and a true reference piece. On a high resolution system, this improvement is very obvious across all program material, including redbook and high res. The DAC202 sounds better on higher res recordings than it does on redbook material, most likely due to filtering. The DAC202 does seem to sound better with a good AES/EBU input from a high quality source (e.g. top quality music server or transport) than it does over Firewire. As always, your mileage may vary, so definitely try different configurations and decide for yourself. Feel free to contact us through ciamara.com if you'd like additional info or help.