Variable: DEFAULT_EQUALIZER_GAIN_RANGE_DB

const DEFAULT_EQUALIZER_GAIN_RANGE_DB: EqualizerGainRange;

Defined in: packages/player/src/hooks/useEqualizer.ts:60

Default bounds for a band slider: ±12 dB.

Not ffmpeg's limit (±900 dB) and not the built-in presets' self-imposed ceiling (±9 dB) — it is the range a consumer EQ can offer without the result being unusable. Past about ±12 dB a one-octave bell stops sounding like tone control and starts sounding like damage, and the pre-amp equalizerPresetChain computes has to give back everything the boost gained anyway. Override with UseEqualizerOptions.gainRangeDb if your UI wants a different feel.