If you can't find a preamp that features the low voltage power, a viable alternative is to use an existing good quality mic preamp with its 48V Phantom Power turned OFF -- and build a small circuit inserted between mic plug and preamp input that supplies 4.5VDC to the mics from 3 AA batteries. Be sure to include a blocking capacitor in the audio signal after the point where the DC is applied, to make sure that DC is not introduced into the Mic input of the preamp.

Not an overly difficult project, actually, but might be out of your scope, don't know.

A quick method might be to use the old Video/mp3/minidisk player as a preamp, easily done if the one you use has a Line Output for each channel and monitoring capability, just take that Line Output to two Line Inputs on your recording device.

If nothing else, may be time to consider simply picking up a pair of small diaphragm condenser mics that are designed to run from true 48V phantom power and be done with it, especially considering the rather low prices of the many available imports these days. It will sound a bit better, as a plus.


--Mac