Gain Staging

What It Is

Gain staging is the practice of ensuring that the signal level at every point in the audio chain — from input to output, through every plugin and processor — is operating at its optimal level. Not so low that the noise floor becomes a problem, and not so high that clipping or unwanted distortion occurs. It’s the foundational discipline that makes everything else in mixing and mastering work correctly. Without proper gain staging, you’re fighting level problems at every step, and the cumulative effect is a mix that sounds harsh, noisy, or uncontrolled.

How It’s Done

In digital audio, keep individual track peaks around -18 to -12dBFS. This leaves plenty of headroom for the summing stage where all tracks combine, and it puts the signal in the sweet spot for analog-modeled plugins that are calibrated to expect specific input levels. Start every mix by setting all faders to unity (0dB) and adjusting the clip gain or trim on each track to bring it to an appropriate level. This way, your faders are in a usable range for actual mixing rather than pulled down to -30dB to compensate for hot recordings. When you insert a plugin that adds or reduces gain, compensate so the output level matches the input level — this prevents the cascading gain problem where each plugin in a chain pushes the level higher and higher.

Where You’ll Hear It

Proper gain staging is invisible — you hear its absence more than its presence. Poorly gain-staged mixes reveal themselves through harshness (plugins driven too hard), noise (levels too low being amplified), unexpected distortion (clipping at summing points), and a general lack of punch and clarity. Professional engineers’ mixes sound clean, punchy, and open in part because meticulous gain staging allows every processor in the chain to operate in its designed sweet spot.

For Engineers

Start every mix by setting your levels. Faders at unity, adjust clip gain so tracks peak around -18 to -12dBFS. The mix bus should peak around -6dBFS before mastering processing, leaving headroom for the mastering engineer (or your own mastering chain). When inserting plugins, check that output levels match input levels — many plugins add gain by default, and that accumulated gain creates problems downstream. Analog-modeled plugins (compressors, EQs, tape machines, console emulations) are designed to operate at specific internal levels, and feeding them signals that are too hot or too quiet changes their behavior in ways the designer didn’t intend. Proper gain staging is boring and unsexy, but it’s foundational — get this right and every plugin sounds better, every processing decision is clearer, and the entire mix comes together more easily.