Why this is not a side issue
Loud sound destroys sensory cells and other structures in the inner ear; the result is irreversible hearing loss. The high frequencies go first — and at first you do not notice at all. Only when the exposure continues does the loss become audible, and by then it cannot be undone.
For a DJ this is not a general health topic, it is an occupational risk at the one place that cannot be replaced. A broken controller costs money. A broken ear costs the ability to judge whether the bass is sitting too loud at all — and that ability is the whole craft.
The dose decides, not the moment
The key idea is the dose: it is not one loud moment that does the damage, it is the amount of sound energy over time. Quiet and long acts like loud and short. The WHO spells it out — 100 dB for 16 minutes has the same effect as 80 dB for 40 hours.
So the recommendation for leisure noise is: below 80 dB, for at most 40 hours a week. The table below is the same calculation, just written out — and it is the reason a night in a club is not a rounding error.
Level and permitted weekly duration
| Level | Per week | Where you meet it |
|---|---|---|
| 80 dB(A) | 40 hours a week | The reference value. Roughly a loud conversation in a crowded room. |
| 86 dB(A) | 10 hours a week | Two long evenings — and the week is spent. |
| 92 dB(A) | 2.5 hours a week | A single short set is already at the limit. |
| 95 dB(A) | 75 minutes a week | A four-hour set overshoots the weekly budget several times over. |
| 101 dB(A) | 18.75 minutes a week | Less than a quarter of an hour. For the whole week, not per night. |
| 107 dB(A) | 4.5 minutes a week | The end of the table. Anything above that is not listed. |
What the world of work says about it
A gig is work, not leisure — which makes occupational safety worth a look. The German DGUV names lower action values of 80 dB(A) as a daily noise exposure level over eight hours and upper ones of 85 dB(A); for peak levels the figures are 135 and 137 dB(C). From the lower value onwards the German noise and vibration regulation applies, below it does not — because below that threshold there is generally no risk of irreversible hearing damage.
Those values apply to workplaces and not automatically to you as a self-employed DJ. As a yardstick they are still the most honest one available: they say when an environment is classed as hazardous to hearing — and a booth is above that line, not below it.
Which protection is worth it in the booth
The question is not which protection attenuates most, but which one lets you keep working. A plug you take out after twenty minutes because you can no longer find the bass protects you for exactly twenty minutes.
Filter plugs — the working solution
Designed to attenuate more evenly across the frequency range than foam. You hear the same music, just quieter — which is why you can keep working. For us the only design that stays in the ear for a whole night.
Foam — better than nothing, worse than everything else
It mostly takes the highs away. Right as an emergency pair in a jacket pocket, wrong as a permanent answer: someone who can no longer judge the mix takes them out again — and then they protect nothing at all.
Custom-moulded protection from an audiologist
The advantage is less the attenuation than the fit: what does not press and does not slip out actually gets worn. Worth it from the point where you play regularly. We quote no prices — they vary too much between audiologists.
Headphones are NOT hearing protection
Closed-back headphones shut out a little of the room and so appear to replace the plug. In fact they add a second loud source right at the eardrum — and that one you turn up over the course of the night, not down.
Hearing protection in a working night: 6 steps
None of these steps costs you playing time, and none of them assumes you get a say over the room.
Pack the plugs before you leave the house
The plug lying at home has never protected anyone. Two pairs: one in the record bag, one in the jacket. The spare is not a luxury — plugs get lost in the dark, and then the whole calculation starts over.
Put them in when you arrive, not when your set starts
The hour before your slot counts in full — you are standing in the same room as the crowd, often closer to the system. If you only put them in once you are in the booth, the bigger part of the night is already behind you unprotected.
Give yourself ten minutes to adjust
Every kind of hearing protection changes the sound, and your ear compensates — but not immediately. Play the first few minutes deliberately conservatively instead of reaching for the EQ because something seems missing. Whatever is still missing after ten minutes is real; what was missing before that was habit.
Turn the monitor down, not up
The booth monitor is the loudest source of your night and the only one you genuinely control. Turn it down to the point where you can just about still beatmatch. When you want to turn it up because the room is getting louder, the headphones are almost always the better tool.
Headphones on one ear, and only as long as needed
One ear on the headphones, one on the room — that is not only the better way to work, it also halves the time one ear takes two sources at once. And headphones are not hearing protection; they are a second loud source right at the eardrum.
Give it real quiet afterwards
Your hearing recovers when the exposure stops. The evening after with no headphones, no second club, no music while you tidy up is not self-denial — it is the part that squares the account again. Two loud nights back to back cost more than twice one.
The most common mistakes
Only putting them in when it hurts
Pain is not a warning threshold, it is late feedback. The dose counts from the first track on — and the loudest part of the night is often the part where you are not yet playing.
Turning the monitor up against the crowd
The room gets louder, the monitor gets louder, and that only ever goes one way over a night. The headphones do the same job at a fraction of the exposure.
Giving up after ten minutes
Every kind of hearing protection sounds wrong at first, because your ear is set to a different tonal picture. Anyone who takes them out during that phase never finds out what it sounds like after two weeks.
Two loud nights back to back
The recovery phase is part of the calculation. Friday and Saturday in the club, headphones on the way home in between — that is not double the exposure, it is exposure without a break.
Leaving the spare pair at home
A plug that drops on the floor in the dark is gone. With no second pair you play the rest of the night unprotected, knowing exactly that you are doing it.
Warning signs you have to take seriously
Ringing that survives the night
A noise in the ear right after a gig is common. One that is still there the next morning belongs with an ENT doctor — soon, not eventually.
Conversation in noisy places gets hard
Understanding speech against background noise goes before hearing quiet sounds does. If you ask people to repeat themselves in a restaurant more than you used to, that is a signal and not a habit.
The TV gets louder without you noticing
Other people in the house notice first. If somebody mentions it, take that more seriously than your own impression — with a gradual loss, your impression moves along with it.
Muffled hearing the day after
A temporary shift in the hearing threshold. It usually recedes — and it is exactly the point at which something can still be changed before it stays.
Please note: this article summarises published reference values and is not medical advice. If you hear a ringing after a night out and it is still there the next morning, that belongs with an ENT doctor and not in a forum — the sooner the better.
Common questions about hearing protection
How loud is a DJ booth really?
There is no blanket answer, and any figure someone gives you without a measurement is a guess. What you can do yourself: a sound level app on your phone is not calibrated, but it shows you the order of magnitude — and that is enough to tell whether you are in the range of minutes or hours per week. More important than the exact value is the direction: the booth is almost always louder than the edge of the dancefloor, because the monitor points at you.
What counts as a safe listening dose per week?
For leisure noise the WHO recommends a level below 80 dB for a maximum of 40 hours a week. The accompanying table scales that down for higher levels: 83 dB(A) — 20 hours, 86 dB(A) — 10 hours, 89 dB(A) — 5 hours, 92 dB(A) — 2.5 hours, 95 dB(A) — 75 minutes, 98 dB(A) — 37.5 minutes, 101 dB(A) — 18.75 minutes, 104 dB(A) — 9.5 minutes, 107 dB(A) — 4.5 minutes. So every 3 dB more halves the permitted time.
Does hearing damage heal?
No. Loud, regular or prolonged exposure can permanently damage the sensory cells and other structures of the inner ear; the resulting hearing loss is irreversible. The high frequencies are affected first, and that is not noticeable at first — so the damage is already there before you become aware of it.
Foam plugs or filter plugs?
For DJing, filters. Foam mostly takes the highs away — the result sounds dull and you can no longer judge whether a hi-hat is too harsh or a bass too wide. That is exactly why foam plugs end up in a pocket after a short while. Filter plugs are designed to attenuate more evenly across the frequency range; you hear the same music, just quieter. That is our practical assessment, not a measurement.
Are custom-moulded plugs from an audiologist worth it?
If you DJ regularly: yes, and less for the attenuation than for the fit. A plug that does not press and does not slip out gets worn — and hours worn beats any technical spec. If you play twice a year, a good off-the-shelf filter plug will do. We deliberately do not quote prices here: they vary so much between audiologists that any figure would mislead.
Will I mix worse with hearing protection in?
For the first few weeks yes, after that rather better. The reason is uncomfortably simple: without protection you keep turning up over the course of the night because your hearing dulls — and you end up making your decisions on an ear that is no longer working properly. With protection, the level you hear stays comparable across four hours. What feels like a loss at the start is mostly getting used to a different tonal picture.
What should I do if my ears ring after a gig?
Ringing or hissing after a loud night is a warning signal, not a side effect of the job. If it is gone the next morning, it was an early warning — take it seriously and change something. If it is still there, that belongs with an ENT doctor, and soon rather than eventually. We deliberately give no treatment advice here: that is a medical question and not one a DJ guide can answer.
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