Use of multiple mics to multiple tracks is not as easy as it looks to the uninitiated, one must be very careful that all of the mics are placed such that no two mics are situated such that they are recording the wave out of phase in order to prevent phase cancellations when played back.

That said, sometimes a certain amount of phase cancellation can add that almost "chorusing" effect to the playback, often desirable for guitar work if the phase differences are not too severe.

An old British trick, use two mics on the guitar amp, one close mic and one at the other end of the large room. Big old cathedral or other large area, placing that second mic to face a corner or corner/ceiling area can yield some "huge" sound to the track. this one is for Rock tracks, of course.


--Mac