problem
Spectral balance is the overall low, mid, and high-frequency shape of the mix.
A mix can feel boomy, harsh, dull, thin, or cloudy even when no single track is obviously wrong. That is often a spectral balance problem.
The issue may come from arrangement, monitoring, room bias, or too many small EQ choices adding up.
Use reference tracks at matched loudness and listen for broad relationships: sub weight, low-mid density, vocal presence, and top-end air.
A spectrum analyzer can support the check, but the target should be a musical range rather than copying another song's curve.
Try arrangement, level, and broad tonal moves before chasing narrow spikes. Often the mix needs less masking or a better balance, not dozens of cuts.
Meter Core combines spectrum and loudness context so tonal decisions stay connected to translation.