On Wednesday 05 April 2006 13:16, Timothy Miller wrote: > On 4/4/06, Tom Cook <[EMAIL PROTECTED]> wrote: [snip] > > Phantom power is achieved by putting 48VDC on BOTH signal conductors, > > relative to the third conductor. The thing at the other end can then > > take 48 volts between a signal line and earth, and send a signal back in > > the difference between the signal lines. This difference induced between > > the lines is small enough (typically 1mV) that it doesn't much affect the > > 48V supply. Needless to say, there is lots of coupling/decoupling > > involved. > > Definitely something only an external box could provide. > > How will users feel about having the external box? Good? Bad? > Most of the top of the range setups already have an external box that handles all the A/D D/A conversions. In fact, the industry leading solution for pro audio, Digidesign Protools, has no outputs on board the PCI card, just a connector for different external ADC, DAC and MIDI boxes.
Paul Mullen. _______________________________________________ Open-graphics mailing list [email protected] http://lists.duskglow.com/mailman/listinfo/open-graphics List service provided by Duskglow Consulting, LLC (www.duskglow.com)
