That's interesting, but for some reason I cannot seem to find anything in the product description of the NON POWERED mixers you selected that says NON-POWERED. In fact, there is a section that descibes in great detail the Phontom Power used for the XLR inputs, and the versitility of the POWER SUPPLIES.
When I looked at the Power Mixer links, they refer to some at Amp-Mixers and PA (Public Address) amplifier systems.
I must be missing something here.

Cheers,
Gary
------------------
Travlin' Easy
_________________________
PSR-S950, TC Helicon Harmony-M, Digitech VR, Samson Q7, Sennheiser E855, Custom Console, and lots of other silly stuff!
K+E=W (Knowledge Plus Experience = Wisdom.)