Per:
between XLR (1-8),
between Jack (1-8, 9-12 L / R)
insert (1-4),
gain
3-band EQ
AUX SEND (1-2)
panoramic
group 1-2 and / or 3-4 and the fader.

An effect (vocal reverb and room all)
send L-Mono / R,
return L-Mono / R,
TAPE IN / OUT RCA + volume
7-band EQ on the ST bus,
headphone jack,
ST out (XLR)
Group 1,2,3 and 4 out (jack).

UTILIZATION

Easy for the sound of a group (taken together or live), thanks the 8 mic inputs (XLR, phantom power supply possible) and efficient use for the multi track thanks to the group 1-2 and 3-4 to enable recording and MUCH simultaneously without resonance.

SOUNDS

Trs clean, pramplis are of good quality and EQ too.
a trend can be dull, but compensates with mids and EQ 7-band.

OVERALL OPINION

The MX12 / 4 is no longer disponnible (except OCCAZ)
I find her little sister technically superior the MG12 / 4 (except prampli that I could do the testing)

possess if using home studio in DTD with sound card (eg, type M-Audio Delta 44.66 etc.).