What is a Mastering Chain? A Simple Guide for Beginners

TL;DR: A mastering chain is simply the plugins you use on your master bus for the purpose of mastering audio. There’s no magic to it. It typically includes metering, EQ, compression, saturation, stereo width processing, and a limiter, in that general order. The two non-negotiable investments are a good True Peak limiter and accurate monitoring. In this guide, I’ll walk you through what a mastering chain actually is, share my own chain, and cover the biggest mistake that ruins most beginners’ masters.

What is a Mastering Chain? The Simple Answer

If you’ve been researching mastering, you’ve probably come across the term “mastering chain” and wondered what it actually means. Is it a special set of plugins? A specific signal flow? Something only professionals with expensive gear can build?

Here’s the simple answer: a mastering chain is the plugins you use on your mastering bus, or directly on your mix tracks, with the purpose of mastering or finishing an audio project. That’s it.

Some people want you to believe there’s a big difference between “throwing plugins on the master bus” and having a “mastering chain.” To some extent, they’re right. But the difference isn’t mystical. It’s simply whether you’re using the right plugins for mastering purposes. If you are, then your plugins on the master bus are your mastering chain.

Essentially, a mastering chain is made of the plugins you like to use when mastering audio. Let me show you what that looks like in practice.

What’s in a Mastering Chain? My Actual Signal Flow

So what is a mastering chain made of in practice? Here’s the signal flow I use when mastering in the box. Not every project uses every one of these tools, but this is the general framework I work within.

1. Metering (at the end of the chain, but inserted first). I start building my mastering chain from the end. I insert my metering plugins at the very last position so I can use not only my ears but also my eyes to guide my decisions. This gives me a reference point before I start processing anything. I can see the LUFS, True Peak, spectrum, and phase correlation from the very first playback. For more on what these meters mean, check out my audio mastering for beginners guide.

2. The first processing move. This is the technique I show in my free cheat sheet. It’s the foundation I apply to every master before deciding what else the project needs.

3. Compression. Depending on the project, I reach for either a transparent or a colorful compressor. When a mix sounds too sterile or too clean, I might add color to it, unless that clean sound was the intent of the producer. On the other hand, if I want to keep the project as it is, I reach for the most transparent tools I can find. The project tells you what it needs.

4. Saturation or distortion. For warmth, glue, and harmonic richness. Not every project needs this, but when it does, a subtle amount of saturation can bring a mix to life without changing its character.

The Final Stages of Your Mastering Chain

5. EQ for tonal balance. Gentle moves to shape the overall frequency balance. This isn’t about fixing individual tracks. It’s about making sure the entire mix sits right across the frequency spectrum. If you’re making moves larger than 2-3 dB, the mix probably needs work before mastering. For more on how I approach this, read my guide on mastering chain plugin order.

6. Stereo width and depth. When a mix feels too narrow, I might widen it slightly. For front-to-back depth, I address that here as well. Subtle moves only. Overdoing stereo width causes phase problems that will hurt your mono compatibility.

7. Limiter. The final processor before the meters. This is where I bring the track up to its target loudness. I set the output ceiling to -1.0 dBTP and bring up the input gain until I reach my LUFS target. Three to five dB of gain reduction maximum. If I need more than that, the mix is too quiet and needs to be addressed at the mixing stage.

8. Clipper (optional). I don’t like clippers and rarely use them. But for really loud electronic music where you need to push the loudness further, I’ll place a clipper before the limiter. It shaves off the transient peaks so the limiter doesn’t have to work as hard.

What is a Mastering Chain Without Good Monitoring?

Here’s something most “what is a mastering chain” articles won’t tell you: your chain is only as good as what you can hear.

Even with the best plugins in the world, inaccurate monitoring means you’re guessing. You might be adding EQ to fix a problem that only exists in your room. Or perhaps you’re compressing something that doesn’t need it because your speakers aren’t showing you the dynamics clearly.

A decent monitoring system is just as important as the plugins in your chain. If you’re working on headphones or budget monitors, use reference tracks and check your masters on multiple playback systems. For more on this, I covered the topic in detail in my headphones vs monitors guide.

If you’re looking to upgrade your monitoring, my mastering home studio guide covers what to buy at every budget level.

The Biggest Mastering Chain Mistake Beginners Make

The most common mistake I see when beginners build their first mastering chain is not taking care of gain staging.

Most people think that if they see no red on the master bus, they’ve handled it. But the problem is more subtle than that. Distortion can sneak in between the plugins in your chain. Each plugin in the chain adds or subtracts gain, and if you’re not watching the levels at each stage, you can introduce unwanted distortion that accumulates through the chain.

Then when you put a limiter at the end, you think you’ve reached healthy True Peak levels, but the master still distorts on playback. The clipping happened earlier in the chain, and the limiter can’t undo it.

A healthy gain staging strategy begins at the mixing stage, or even at the recording stage, and should be maintained all the way through to the finished master. Watch your plugin levels at every point in the chain, not just at the output.

Building Your First Mastering Chain on a Budget

If you’re just starting out and wondering what is a mastering chain you can actually afford, here’s the practical answer.

Your biggest investment should be a very good True Peak limiter. This is non-negotiable, unless you’re mastering genres with loudness targets below -13 LUFS, in which case the stock limiter in your DAW might be enough. For everything else, the limiter is the most critical plugin in your mastering chain. A bad limiter will squash the life out of your master, and no amount of processing before it can fix that.

I recommend specific limiters in my free cheat sheet.

For everything else, stock plugins will get you started. If you’re really on a budget, the EQ, compressor, and other tools built into your DAW are good enough to learn the fundamentals. You can upgrade individual tools as you develop your ears and understand what your workflow needs.

But remember: your mastering chain won’t be enough on its own. You’ll need a decent monitoring system to actually hear whether your strategies are improving the project you’re working on. Without that, you’re working blind no matter how good your plugins are.

My Mastering Chain: In the Box vs Hybrid

For context, my mastering chain has evolved significantly over the years. When I was fully in the box, plugins handled everything: EQ, compression, saturation, width, limiting. And it worked. I got professional results that way.

Now I work hybrid, using both plugins and outboard gear. My current setup includes an SSL Bus+ for dynamics and color, an SSL Fusion for saturation and stereo width, and a TC Electronic System 6000 for reverb and depth processing. If you’re curious about those settings, I wrote a detailed guide on my SSL Fusion and Bus+ settings.

But here’s what I want you to understand: hybrid isn’t better by default. It’s just different. I went hybrid because I liked the sound and the workflow. The principles of a good mastering chain are exactly the same whether you’re using plugins or hardware. Good gain staging, intentional processing, accurate monitoring, and a transparent limiter at the end.

Related Articles

Want to keep learning? Check out these guides:

• What Order to Put Plugins in Mastering Chain – Detailed guide on plugin order and when to change it
• SSL Fusion & Bus+ Settings That Actually Work – My hybrid mastering chain settings
• Audio Mastering for Beginners – Complete guide to metering, LUFS, and the mastering process
• What is Gain Staging? – The #1 mistake that ruins mastering chains
• How to Set Up a Mastering Home Studio – Monitoring and gear at every budget

Ready to Go Deeper?

Understanding what a mastering chain is just the beginning. If you want to learn the complete mastering system I use on every session, from the first plugin in the chain to the final export, check out the Pro Audio Mastering course.

I’ll walk you through real mastering sessions, show you exactly how I build my chains for different genres, and teach you how to hear what needs fixing and what to leave alone.

Learn more about the Pro Audio Mastering Course →

About the Author

I’m Adrian Milea, Mixing & Mastering Engineer, Music Producer and Educator with over two decades of experience. My mastering chain has evolved from stock plugins on an Mbox 2 to a hybrid setup with SSL, TC Electronic, and Genelec monitoring. I teach audio producers how to get professional results without the guesswork.

Until next time, Stay Cool and Make Great Music!
-Adrian

Last updated: March 2026