I am answering on behalf of Michael.
Sound Professionals' SP-XLRM-MINI-2-PHANTOM will allow you to use MixerFace's 48V and XLR input. The same website had other adapter cables, but it seems this adapter does both connector and 48V conversions. It is bit pricey, but it gets the job done concisely and compactly.
Is this helpful?
Hi David, thanks!
Yes I know about the adapter, but it is expensive, and another 2 XLR connectors in the pocket add the bulk.
For a portable 2 channels recording device such as MixerFace, I think users would do a lot of stereo recordings, binaural, or with other stereo mics. Therefore, it would be nice if MixerFace has features to make stereo recording easier, such as gain knob with clicks to easily match the left and right gain, 3.5 mm stereo mic socket with lower voltage phantom power for binaural mics, etc. To me those features are important, as with portable devices, I would like to keep it as small as possible, with less adapters etc.