I've been using the Crown 311-A for just over a year, it's a fantastic mic and works just fine with the 3000 because it has its own battery pack that supplies the needed phantom power.
Cheers,
Gary
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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.)