
Mastering engineer for techno and hard techno, based in Paris. 3,500+ tracks mastered since 2020 for Nico Moreno, Rave Alert, DYEN, Vladimir Cauchemar and labels across Europe. Loud, punchy masters that hold together on big club systems, with honest feedback on your mix before we start.
Hi, I'm Jean-Charles (O.N.L), a mastering engineer based in Paris.
I master techno, hard techno, industrial, trance and hardcore. Since 2020, more than 3,500 tracks for producers and labels: Nico Moreno, DYEN, Vladimir Cauchemar, Luca Agnelli, Rave Alert, Mass London, Trashtek, Neotrance, Dusk Records...
Hard music has to be loud. The real work is keeping the kick and the sub clean when it is, so the track still hits on a big system and not only in headphones.
Before mastering, I listen to your mix and tell you honestly if something would be better fixed at the source (kick and bass balance, a limiter left on the bus, harsh highs). It's free, and it often makes a bigger difference than the master itself.
How it works:
• You send your track, plus one or two references if you have them
• We talk about the mix if needed
• Your master comes back in 24 to 48h
• Up to 2 revisions included
I also offer stem mastering and mixing.
I come from DJing and production, so I check every master the way it will be played: in a club.
Some of my work: https://soundcloud.com/onl-onl/sets/mastering-by-o-n-l
Feel free to reach out through the contact button.
Click the 'Contact' above to get in touch. Looking forward to hearing from you.
Credits
- Nico Moreno
- Dyen
- Luca Agnelli
- Cassie Raptor
- Blackworks
- Dusk Records
- Hardest Soft Records
- Insolent Rave Records
- Blackplague
- Techno Germany
- The Techno's Children
- Sindex
- COUP
- MOTZ
- Jaded London
- 𝕿𝖊𝖈𝖍𝖓𝖔𝖕𝖘𝖎𝖘
- The Finest Techno
- Voight-Kampff
- THE BRVTALIST
- Normative
- Raw
- Janis
- OBSCUUR
- katana
- Abr.
- VCL
- Jahanam
- Rave Alert
- INNERGATE RECORDS
- 𝙐𝙣𝙙𝙚𝙧𝙯𝙤𝙣𝙚
- RÉV.zrt
- Ismus
- / CRUDE /
- 𝕮𝖗𝖚𝖘𝖆𝖉𝖊
- Rave Session
- Kerbela
- INSANE INDUSTRY RECORDINGS
- Girlcast
- PURE HATE 000
- O.N.L
- ORGANÏK
- SCTR
- 𝕯𝖊𝖒𝖆𝖎𝖓 𝕶𝖔𝖑𝖑𝖊𝖈𝖙𝖎𝖛
- Falsive Records
- Grounded.
- Axel Picodot
- Bones 33
- Resonance
- DJ Local B
- A.J.O
- Skryption
- Dexphase
- Karl Schwarz
- Constantinos
- Distorted Orchestra
- enfan
- Enham
- JGMZ
- noimage
- Krypton
- Anas
- Ian Melt
- DERESTRICT
- Pawlowski
- Oxid Records
- ABEM
- Maison Close Records
Languages
- English
- French
Endorse O.N.L Mastering5 Reviews
check_circleVerifiedJC did an amazing job on our track. You can tell he really cares about getting the absolute best out of every song. Super professional, great communication, and a pleasure to work with. Definitely recommended!
check_circleVerifiedSo good and easy to work with J-C. He doesn’t just have a natural ability to hear and enhance the right frequencies, he also perfectly understands what the client wants, and that’s rare! I highly recommend him
check_circleVerifiedIncredible job by O.N.L, he really takes the time to make sure the track is perfect and his feedback was exactly what I was looking for. If you are looking to get a track mastered he the is expert you need. His work is clean and balanced, can't wait to work with him for future projects.

JC for president!
I have been working with him since two years and his work is always perfect. His mixing and mastering skills are equally badass.
Professional, conscientious, talented and great communication. I highly recommend him!

JC is one of the best sound engineers in town.
He has been with us for almost 3 years and never disappoints. He is professional, always on time and what would make a big difference with others : he is an excellent advisor. He will always try to get the best of your tracks, trust him.
Thanks again JC.
Dusk Records Owner
Interview with O.N.L Mastering
Q: What type of music do you usually work on?
A: Techno - Industrial Techno - Hardcore - Hardtechno - Hardstyle - Trance.
Q: Tell us about your studio setup.
A: I work only digital. I chose that solution for the flexibility, the easy recalls and the short deadlines easy to respect. You can get your track ready in less than 48h.
Q: What other musicians or music production professionals inspire you?
A: Chab, Alex Gopher, Alexis Bardinet, David Hachour.
Q: Describe the most common type of work you do for your clients.
A: I mostly do digital mastering for my clients. I also spend a lot of time doing feedback on production.
I was the Producer, mixing & mastering engineer in this production
- play_arrowO.N.L - Revolution
- Mastering EngineerAverage price - $50 per song
- Mixing EngineerAverage price - $200 per song
- Podcast Editing & MasteringAverage price - $150 per podcast
- RestorationAverage price - $150 per hour
- EditingAverage price - $150 per track
Mastering delivery in 48h
Mixing delivery in 96h
Up to 2 revisions with no extra charge.
> Free Mix feedback <
If you have shorter deadlines, let me know, I can sort it !
- Mix & Mastering "in the box" with all the best plugins including : Eventide
- Fabfilter
- Izotope
- Lexicon
- Newfangled Audio
- Oeksound
- Plugin Alliance
- Slate Digital
- Softube
- Soundtoys
- Weiss
- Soundtheory
- Waves.
