Club mastering: loud enough for the DJ set, punchy enough for the floor.
Nothing normalises a USB stick in a CDJ. Your track plays right after something mastered loud, so it has to hold its own. ZERRRO Engine masters to club loudness per genre, and you hear exactly how far you can push.

Typical for released techno, house and bass music. The engine sets it per genre.
At club loudness the limiter stops at 0 dBTP, so nothing overshoots. Streaming masters stop at −1 dBTP.
CDJs and DJ software play files as they are. Loudness is your job, not the platform’s.
What a club master has to do
In a DJ set, your track is compared against the one before it at the same fader position. It needs to be loud, but a squashed master loses in the room even when it wins on the meter.
Keep up with the previous track
DJs gain-match, but a master that is far too quiet makes them work. Club loudness per genre avoids that.
Keep the kick punching
On a big system, punch matters more than loudness. Limiting removes punch first.
Keep the low end mono
Club systems are often mono in the low end. A wide sub cancels out on the floor.
Hear it. Shape it. Then decide.

Upload & check
Bit depth, sample rate, true peak, clipping and loudness of your premaster are measured in seconds. If the file is already limited or clipping, you find out before anything is processed.

Pick your genre and Club loudness
Each genre has its own club target in the engine, from around -9 LUFS for deep house to around -7 LUFS for hard techno and dubstep.

Shape it while it plays
Shape the tone while it plays, set Club, and compare the master with your mix at matched loudness. If the kick suffers, back the loudness off and render again for free.

A/B and decide
Compare the master with your mix at matched loudness, read the measured LUFS and true peak, and render again for free if it is not there yet. You pay only when you download.
Preview free. Pay only for the download.
When you unlock a master
- The master you heard, full length, as 24-bit WAV and 320 kbps MP3
- Your loudness target, true peak never above 0 dBTP (−1 dBTP for streaming)
- Download link right away and by email
- Files kept in My Masters for 12 months
Before you upload
- 24-bit WAV, no limiter on the master bus
- 3 to 6 dB of headroom
- Kick and bass mono below roughly 100 Hz
- Full length with DJ-friendly intro and outro
Questions producers ask
How loud should a club master be?
Released techno, house and bass music usually sits around −7 to −9 LUFS integrated with the limiter ceiling at 0 dBTP. The engine picks the target per genre.
Is louder always better in a DJ set?
No. DJs gain-match, and an over-limited track has less punch on a big system. Loud enough, with the kick intact, wins.
Can I also get a streaming version?
Yes. Switch the loudness to Streaming and render again for free.
Can I try it free?
Yes. The full-length preview and A/B are free. The download costs 2.99 EUR per track.
Hear your track mastered first. Decide after.
Drop a premaster or take one of the demo tracks for a spin. Free, right now, in your browser.
Master a track free → No signup to preview · no card · no install