PSU Efficiency with nDAC

Posted by: sbilotta on 09 May 2010

Not wanting to hijack another thread... Smile

How efficient is the use of a XPS vs. a 555PS when powering the nDAC ? i.e. are there parts of the PSUs that are not used ?
Many Thanks
Stefano
Posted on: 10 May 2010 by PureHifi
In the case of the 555PSU, there are dual outputs for the digital and analogue stages of the CD555 that it normally powers. Only one of the outputs is used on the nDac. the XPS is single output so no dead end...

However, the 555PSU absolutely canes the XPS on anything that can use them...
Posted on: 10 May 2010 by David Dever
Six out of seven sections are used, and the first output on a 555PS carries both analog AND digital rails (used only for digital on a 555PS, by the way).
Posted on: 11 May 2010 by Manu
quote:
Originally posted by David Dever:
(used only for digital on a 555PS, by the way).


You mean CD555.
Posted on: 11 May 2010 by David Dever
Yes, thanks.