Master Bus vs Mix Bus: Where to Process Your Full Mix

Master bus vs mix bus processing: subtle 2-bus EQ and compression in mixing vs final mastering chain differences.

The master bus (2-bus) is the final stereo sum in your DAW before export. Gentle EQ or compression here can glue the mix, but heavy processing reduces headroom for mastering. Mastering applies the final loudness and delivery polish.

Key takeaways
  • Mix bus: subtle glue; leave headroom for mastering
  • Do not brick-wall limit the mix bus before mastering
  • Related: Mix Bus Compression
  • Export premaster around -6 to -3 dBFS peak

Online alternative

Skip heavy mix-bus limiting, export stems or stereo premaster, finish in AI Mastering.

Finish online

Mix and Master Online.

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