Once your gear is set up, work quickly to check for rattles or bad lines before the drummer grows fatigued or the band crowds the mixing console.
Polarity and Phase Alignment
Because the kick drum generates the loudest, lowest fundamental frequencies, it serves as your primary phase reference. Have the drummer play the full kit with only the kick drum channel unmuted. Bring up every other microphone channel one at a time, flipping the channel's polarity (∅) switch back and forth. Leave the switch in the position that yields the thickest, most robust low-end response.
Note: If you are using dual snare microphones, prioritize aligning the top and bottom snare channels to be perfectly out-of-phase with each other first, rather than forcing them to match the kick. For cymbal overheads, a high-pass filter will roll off the low frequencies anyway, making kick drum phase alignment less critical on those channels.
Soundstage and Stereo Panning
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The Center Foundation: Pan the kick drum dead-center. This centers the low-frequency energy in the listening room and splits the massive power load evenly across both channels of your amplifier.
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Overhead Width: Spaced overheads define your default stereo field. Panning them hard left and right creates an ultra-wide sound, but keeping them slightly narrower leaves cleaner space for wide-panned guitars and creates a more realistic acoustic soundstage.
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The Ghost Panning Technique: To avoid a blurred, confusing stereo image, your spot microphones must match the spatial placement of the overheads.
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Listen closely to the stereo overheads and identify exactly where the snare sits in that image.
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Unmute your close snare spot microphone. If it is panned center, bringing it up will unnaturally pull the snare sound toward the middle.
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Mute the spot channel, shift its pan knob in the direction of the overhead snare placement, and unmute it again.
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Repeat this refinement until increasing the volume of the spot microphone simply makes the snare louder and clearer without shifting its position in the stereo field.