The limiter is the last decision you make on a master, and it is the one most people get wrong. A well-set limiter for mastering raises perceived loudness, catches stray transients and guarantees your file will not clip on a listener’s DAC. A badly set one flattens the life out of a mix in thirty seconds. This guide walks through exactly where to put the ceiling, how much gain reduction is sensible, and the numbers that keep you safe across every streaming platform.
What a limiter for mastering actually does
A brickwall limiter is a compressor with an infinite ratio and a very fast, look-ahead-assisted response. It sets a hard ceiling that the signal cannot cross, then applies makeup gain so the whole track sits louder against that ceiling. Two controls matter most: the output ceiling (the highest sample or true-peak value allowed out) and the threshold or input gain (how hard you push into the limiter). Everything else — release, character, transient handling — shapes how transparent that loudness feels.
Set your ceiling to -1.0 dBTP as a default. Streaming encoders (Spotify’s Ogg Vorbis, YouTube’s AAC/Opus, Apple’s AAC) add inter-sample peaks when they convert your PCM file to a lossy format. A file that reads 0 dBFS in your DAW can overshoot to +1 dB or more after encoding, which clips on playback. Leaving one full dB of true-peak headroom absorbs that overshoot. For very transient-heavy material or when you want to be conservative, -1.5 dBTP is safer still. This is why you want a limiter with a genuine true-peak mode rather than a sample-peak one — turn that mode on.
Setting the amount: LUFS, gain reduction and the loudness trap
Loudness normalisation changed mastering. Every major streaming service turns loud masters down to a reference level, so crushing your track no longer makes it louder to the listener — it just makes it more distorted at the same playback volume. Most platforms normalise to around -14 LUFS integrated. That is the number to aim your master at for streaming-first releases: it means the platform passes your file through with little or no gain change, and your dynamics survive.
Practically, push the input gain until your integrated loudness reads between -14 and -10 LUFS depending on genre. Acoustic, jazz and classical belong nearer -14 to -16; modern pop, hip-hop and EDM commonly land -9 to -11 because the density suits the style, accepting that streaming will turn them down. Watch your gain reduction meter: aim for peaks of 2 to 4 dB of reduction on the loudest sections, occasionally touching 6 dB. If you are pulling 8 to 10 dB constantly, the problem is upstream — go back and control the mix bus or a rogue kick, do not ask the limiter to fix it.
- Ceiling: -1.0 dBTP (true-peak mode on)
- Integrated loudness target: -14 LUFS for streaming, quieter for dynamic genres
- Typical gain reduction: 2-4 dB on peaks, not a constant 8 dB
- Release: start around 100-200 ms, or auto-release for program-dependent material
Release, look-ahead and character
Release time controls how fast the limiter recovers after clamping a peak. Too fast and you get distortion and pumping on low frequencies; too slow and the limiter ducks whole phrases, losing loudness. A middle-ground 100-200 ms release works for most full-band music. Many modern limiters offer an auto or adaptive release that shortens on transients and lengthens on sustained passages — a genuinely useful default that keeps bass clean while letting drums breathe. Look-ahead (typically 1-5 ms) lets the limiter see peaks coming and shape them smoothly instead of chopping them; leave it on unless latency matters for a live rig.
Modern mastering limiters give you multiple algorithms or “character” modes. Transparent modes preserve transients and suit acoustic work; more aggressive or “punchy” modes clip a little harder for glue on electronic material. The industry references here are FabFilter Pro-L 2 for its selectable algorithms and excellent metering, and the limiter inside iZotope Ozone, whose IRC modes and true-peak metering make platform-safe masters straightforward. The classic Waves L2 remains a fast, musical option when you want one knob and a result.
A safe limiting workflow
Work in order. First, finish the mix and any tonal mastering EQ and compression before the limiter. Second, insert the limiter last in the chain and set the ceiling to -1 dBTP. Third, raise input gain slowly while watching the integrated LUFS reading and the gain-reduction meter — stop when you hit your target loudness or when the sound starts to dull, whichever comes first. Fourth, A/B against a loudness-matched reference so you are not fooled by “louder is better”. A dedicated meter such as Youlean Loudness Meter after the limiter confirms your true-peak and integrated numbers independently, which you should never trust to a single plugin.
Finally, bounce and check the file in a fresh session, and if you can, run it through a codec preview. If the master already sits at -14 LUFS with -1 dBTP peaks and only a few dB of gain reduction, it will translate cleanly to Spotify, Apple Music and YouTube without the platforms mangling it. For the wider chain around the limiter, see our complete mastering guide, and grab a free true-peak and LUFS reading from the Violet Recording tools hub before you export.
