Or could it be that Eric and DB Audio have managed to come up with a TRULY original design that goes against the grain of the generally accepted design theories of current manufacturers (Emerald Physics anyone) and that they would prefer to protect their design until they have established some kind of foothold in the market?!

And it could be that there's nothing "TRULY original" inside.

Do you think Eric and his team know more about designing DACs, than Metric Halo, EMM Labs, Pacific Microsonics, MSB Technology, Berkeley Audio Design, Weiss Engineering, dCS, Ayre, Wadia, Spectral, Nova Physics Group, Playback Designs and Wavelength Audio just to name a few?