Every producer wants their masters louder. But most are doing it wrong — and it's killing their mixes.
Here are the 7 loudness mistakes I see in over 60% of mixes analyzed on MixDiagnose.
1. Mixing into a limiter
This is the #1 mistake. You put a limiter on your master bus while mixing, and suddenly everything sounds "finished." But you're not mixing — you're hearing the limiter's interpretation of your mix.
When you remove the limiter (which mastering engineers do, because they need headroom), your mix falls apart.
Fix: Mix without a limiter. If your mix doesn't sound good without one, you have a mix problem, not a loudness problem.
2. Targeting -14 LUFS for everything
-14 LUFS is the Spotify target. But it's not a mixing target — it's a delivery target.
If you mix to -14 LUFS, you'll have no dynamics. Everything will be at the same level. Your kick won't punch. Your drops won't hit.
Fix: Mix to -18 to -20 LUFS. Master to your genre's target. The mix needs headroom; the master needs loudness.
3. Ignoring true peak
Peak meters show sample peaks. But inter-sample peaks (the reconstructed waveform between samples) can be 1-3 dB higher than what your peak meter shows.
If your peak meter says -0.1 dB but your true peak is +1.5 dBTP, you're clipping on every DAC that plays your track.
Fix: Always check true peak (dBTP), not just sample peak. Use a true peak limiter (like Pro-L 2, Oxford Limiter, or even MixDiagnose's free analyzer).
4. Compressing the master bus before mastering
If you put compression on your master bus while mixing, the mastering engineer can't undo it. You've baked in your compression ratio, attack, release, and threshold. There's no going back.
This is especially damaging with slow attack times and fast release times — it creates a "pumping" effect that's impossible to remove.
Fix: If you must use master bus compression (some genres need it for "glue"), use gentle settings: 2:1 ratio, 2-3 dB gain reduction, 30 ms attack, 100 ms release.
5. Boosting instead of cutting
When your mix isn't loud enough, the instinct is to boost — boost the bass, boost the treble, boost everything. But boosting adds energy without adding clarity.
A professional master gets loud through cutting — removing frequencies that compete with each other, so the remaining frequencies can be pushed louder without mud.
Fix: Before you boost anything, try cutting 2-3 dB at 300 Hz (the mud zone). You'll be surprised how much louder and clearer the track gets.
6. Not checking mono
Most streaming platforms check stereo correlation. If your track has phase issues, mono playback (which is how most phone speakers and Bluetooth speakers work) will make elements disappear.
A loud master with mono compatibility issues will sound quiet and hollow on the majority of real-world playback systems.
Fix: Sum to mono and check. If anything disappears, you have phase issues. Fix them in the mix, not the master.
7. Mastering to the wrong platform target
Different platforms normalize to different levels:
| Platform | Target LUFS |
|---|---|
| Spotify | -14 |
| YouTube | -14 |
| Apple Music | -16 |
| Tidal | -14 |
| SoundCloud | None |
| Club/Show | -6 to -8 |
If you master to -8 LUFS for Spotify, your track gets turned down 6 dB AND gets run through Spotify's limiter. It'll sound worse than if you'd just mastered to -10.
Fix: Master to -9 to -10 LUFS for streaming. Create a separate -6 to -8 LUFS version for clubs. Never deliver one master for all platforms.
Free loudness check
I built MixDiagnose to make this easy. Upload your track and in 30 seconds you get:
- Integrated LUFS with all streaming platform comparisons
- True peak (dBTP)
- Crest factor (dynamics)
- Frequency balance analysis
- Specific fix recommendations
Free for 3 analyses. No signup needed.
Which of these mistakes are you making?
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