Cut EQ before boosting: subtractive equalization reduces phase shift and preserves mix clarity

A core EQ philosophy from professional mixers: always try attenuating (cutting) a frequency before boosting another. Boosting with any EQ adds phase shift proportional to the amount of boost — the more you boost, the more phase coloring is added. Cutting a problem frequency is both more natural-sounding (reduces what’s excessive rather than compensating) and adds less phase distortion. The method: sweep a large cut (8-10 dB) to find where the sound has most definition, then attenuate to taste. This is especially effective in the 200-600 Hz range (proximity-effect buildup from close-miking) and 2-4 kHz (microphone presence peaks). A common amateur pattern is to boost competing instruments instead of cutting the element that’s cluttering the space.

Examples

If a guitar sounds boxy, sweep a narrow cut through 400-800 Hz to find and remove the offending resonance. If a vocal sounds harsh, cut 2-4 kHz on the offending channel rather than boosting all other elements to compete. Bruce Swedien: ‘he doesn’t care if you have to turn the knob around backward; if it sounds good, it is good.‘

Assessment

A snare sounds ‘honky’ in the mix. Describe the subtractive EQ procedure: starting position, sweep direction, the target frequency range, and how to judge when you’ve cut enough.