Gain staging means maintaining an appropriate signal level at every stage of the signal chain from source to output

Gain staging is the practice of managing audio signal levels at each link in the signal path — from instrument/mic/preamp through every processor and mixer stage to the final mix bus. ‘Appropriate’ means high enough for a healthy signal-to-noise ratio yet low enough to avoid clipping. In analogue gear this was partly self-enforcing because hardware headroom and VU metering guided levels naturally. In DAWs it requires deliberate attention because 32/64-bit floating-point arithmetic can hide overloading problems that only surface later (e.g. when signals hit analogue converters or mismatched plug-ins).

Examples

Setting each DAW channel to peak around -12 to -18 dBFS rather than at 0 dBFS; reducing a synth plug-in’s output volume before its insert effects chain.

Assessment

Describe the two problems that result from poor gain staging: one that affects plug-in sound quality, one that affects mix bus behaviour. At what peak level should a well-staged DAW channel roughly read on a sample-peak meter?