The Davinci was signifigently more like an analog source with a bigger soundstage and a more holographic sound stage. The Berkly was superb I think we also compared both to the EMM Labs Da 2 the new $25k one, and both of these dacs were better than the Emm.
You should listen to one if you can, they are very rare dac's but as Matt will attest to one of the most remarkable pieces of digital out there.
Dave and Troy
Audio Doctor NJ