The mastering chain is the ordered sequence of processors your finished mix passes through on its way to becoming a release-ready master. Getting the order right matters as much as the settings, because each stage prepares the signal for the next: you correct tone before you compress, you control dynamics before you add loudness, and you limit last of all. Understanding the mastering chain turns mastering from a mysterious black box into a logical, repeatable process. This guide walks through every link in a typical chain, explains why it sits where it does, and gives real starting numbers so you can build a chain that makes your tracks louder, cleaner, and more consistent.
Why order matters
Mastering is subtractive and additive in a deliberate sequence. If you limit before you EQ, the limiter reacts to tonal problems you have not fixed yet. If you compress before you correct a boomy low end, the compressor pumps on that boom. The golden principle is to fix problems first, shape tone and dynamics second, and add loudness last, so the loudest, most destructive processor, the brickwall limiter, only ever sees a signal that is already balanced and controlled. A well-ordered chain lets each device do a small amount of work, which is always cleaner than one device doing a lot.
Every move in mastering is gentle. You are working on a whole finished mix, so a change affects every element at once. That is why mastering EQ moves are measured in fractions of a decibel to a couple of decibels, and why compression is measured in one or two decibels of gain reduction. If you find yourself wanting big moves, the fix belongs back in the mix.
The chain, stage by stage
A typical modern mastering chain runs in this order. You will not always use every stage on every song, but this is the framework:
- 1. Corrective EQ. First, fix tonal imbalances with a transparent parametric EQ such as FabFilter Pro-Q. Typical moves: a high-pass around 25 to 30 Hz to remove inaudible rumble, a wide cut of 1 to 2 dB around 200 to 400 Hz to clear mud, and a gentle high-shelf of 0.5 to 1.5 dB above 10 kHz for air. Broad Q values around 1 keep it musical.
- 2. Compression for glue. A mastering compressor at a low ratio of 1.5:1 to 2:1, a slow attack of 30 ms or more, and just 1 to 2 dB of gain reduction pulls the mix together and raises the average level without squashing transients. A clean design such as TDR Kotelnikov is ideal here.
- 3. Multiband dynamics. To control a specific band, most often an unruly low end, insert a multiband compressor such as FabFilter Pro-MB and pull just 1 to 3 dB off the offending band. This tames boom or harshness dynamically without a permanent EQ cut.
- 4. Dynamic resonance control. Optional but valuable: a resonance suppressor such as soothe2 tames harsh peaks around 2 to 6 kHz only when they actually spike, which is far cleaner than a static cut and lets you push loudness harder later.
- 5. Saturation and tone colour. A touch of tape or harmonic saturation adds density and perceived loudness and gently softens transients, making the limiter’s job easier. Keep it subtle, just enough to feel rather than hear.
- 6. Tonal balance and width. An intelligent tone tool such as Gullfoss can automatically reduce masking and open up a mix, and a mid-side stage can add a small 1 to 2 dB of side-channel lift above 3 kHz for width, provided you keep the lows mono below 100 Hz.
- 7. Brickwall limiting. The final stage. A true-peak limiter such as FabFilter Pro-L 2 with its ceiling at -1 dBTP raises loudness to target. Push the input gradually for 3 to 5 dB of gain reduction, stopping the moment transients dull.
- 8. Metering. At the very end of the chain, after the limiter, sit a loudness meter such as Youlean Loudness Meter so you can confirm you are hitting your targets.
Hitting your loudness targets
The meter at the end of the chain exists to confirm two numbers. First, integrated loudness: most streaming services normalise toward -14 LUFS integrated, so mastering much louder than that only gets your track turned back down while losing dynamics. Second, true peak: keep the ceiling at or below -1 dBTP to give lossy encoders headroom and avoid inter-sample distortion. Aim to leave a healthy loudness range, roughly 5 to 9 LU for most modern material, so the master still breathes. An all-in-one option such as iZotope Ozone or brainworx bx_masterdesk packages most of this chain into a single guided interface, which is a good way to learn the order before building your own from individual plugins.
Build your chain, then keep it simple
Once you understand the mastering chain, resist the temptation to use every stage every time. A great master might be nothing more than a gentle EQ, a whisper of compression, and a limiter. Add a multiband or a resonance tool only when the track needs it, and always A/B against a commercial reference at matched loudness so you know your moves are improvements rather than just changes. The chain is a framework, not a checklist to fill.
Master the order and the rest follows: correct, control, colour, then limit, aiming for -14 LUFS integrated and -1 dBTP true peak. From here, dig into the specifics with our guides on getting a loud master and mastering with reference tracks, browse the wider mastering techniques library, and meter your work for free at our audio tools hub. Build the chain once, understand every link, and every master you make will be more consistent than the last.
