On Sunday 14 November 2004 23:51, Karsten Wiese wrote: > Don't know, but a step up converter wouldn't need much power, if the 48V > would only feed some ?A. I guess a phantom powered mic sucks less than 1mA, > no? > Somebody knowing please tell us;-) It is fed to the mic thru a pair of 6K8 resistors and the mic will pull it down an arbitary amount. Some mices will pull 5mA or so. Not particularly problematic with but hardly uA. Regards, Dan.