Mic preamps are VG
Just a note about the XDR2 Mic Preamps in this and other Mackie mixers: they are very good pre-amps with plenty of gain. The only way I can see you having level issues with them is if you are using a very low output ribbon mike--those sometimes need a little more gain than many modern mic preamps provide. Adjusting the mic pre-amps for plenty of gain without clipping is no problem--if clipping is noted, the equipment downstream from the mixer is probably improperly adjusted, causing you to drive the mixer too hard. Remember, a mixer is always part of a recording and/or sound system, and the gain structure throughout has to be properly set up if you are to obtain good results.