Jonas W. K.

Mastering Engineer

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221 Reviews (218 Verified)
Jonas W. K. on SoundBetter

Grammy Award-Winning, Multi-Platinum Selling (John Legend, Jhené Aiko, Tinashe, ZAYN, Blackbear, NVDES, FLETCHER. Sofi De La Torre etc.)

Hey there! I'm based in Los Angeles and ready to help you finishing up your project to a release-ready master!

I specialize in mastering. I have a unique, modern approach and a great ear for sonics that will assure each track stands out.

Our studio is designed and built specifically from the ground up as a mastering studio.
With a hybrid setup based on high-end analog and digital gear, I'm able to get the best of both analog and digital worlds adding that little extra everyone's looking for.

Projects are negotiable, so feel free to reach out as much as you need to. It's key for me to help my clients to accomplish their vision and get a high quality product.

Apple Digital Masters (MFiT) Certified - The studio has been approved by Apple to provide hi-res audio files that meet its Mastered For iTunes specifications (MFiT).

We're a Dolby Certified Studio for Atmos services too.

Contact me through the green button above and let's get to work.

221 Reviews - 49 Repeat Clients

Endorse Jonas W. K.
  1. Review by Luca Newman
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    First time working with Jonas, he did an amazing job, had great communication and delivered on time. Will definitely be working with him again!

  2. Review by Gemïny
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    There's truly no feeling like being able to completely trust someone with your creative vision, knowing that they'll deliver an unparalleled experience for your listeners. And that's exactly what Jonas brings to every track he works on .

  3. Review by Aku M.
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    by Aku M.
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    Amazing work!

  4. Review by kandrax
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    As returning client, I've witnessed first-hand the remarkable dedication, precision, and skill Jonas brings to each track. I'm exceedingly satisfied with the results and eagerly anticipate continuing our collaboration.

  5. Review by Adam B.
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    Jonas did an amazing job on my track. It was my first time using this service, he was clear, direct and communicative. The track sounds amazing!

  6. Review by Alex Charles
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    Absolute pleasure working with Jonas, he really gets my sound!

  7. Review by Andrea V.
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    Recurring customer here: Jonas is my trusted master engineer - and he always does an excellent job. Try his services and you'll see :-)

  8. Review by Yiannis B.
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    I worked with Jonas on my debut track and im beyond amazed by the final mix. He understood my vision and treated my song with such care , something that i really appreciate. Im definately gonna work with him on another project.

  9. Review by Alfie C.
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    Incredible engineer, beautiful, lush, fat, loud but smooth.

  10. Review by Dane S.
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    Yet again, very professional sounding and fast work. Always an amazing time working with Jonas and getting his impactful final touches.

  11. Review by Alex Charles
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    Absolutely wonderful engineer. Totally top notch industry standard stuff and also very easy to work with. Highly recommend Jonas!

  12. Review by Benjamin Pommeranz
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    Absolutely stunning mastering. Jonas made my mixes explode. Sounds so high quality. Brilliant!

  13. Review by kandrax
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    Jonas did an excellent job mastering 14 songs for our album, skillfully reworking previous tracks for a cohesive sound. His professionalism and friendly communication are commendable. I'm a regular customer and I I'm not getting tired to highly recommend him!

  14. Review by Koby
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    by Koby
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    Very quick turnaround once again! Great master, thanks again!

  15. Review by Koby J.
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    Jonas is great to work with as always. Incredibly punctual. Incredibly professional. Thank you!

  16. Review by Julie T.
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    Jonas is super great to work with, extremely talented and professional and he will keep working with you to get the results you are looking for! Thank you so much for your professionalism and patience! I truly enjoyed working with you! I’ll definitely recommend Jonas for your mastering needs!

  17. Review by Angela H.
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    Couldn't have found a better mastering eng! Jonas is so quick, professional, and communicative. Love the mastering work that he did on my track, he really helped me polish it up for release. Thanks Jonas!

  18. Review by Shlomo G.
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    Jonas was really great, quick, and professional, highly recommend him.

  19. Review by Scott Boyal
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    Really great for mastering services. 10/10

  20. Review by Jeremy
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    by Jeremy
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    Always a pleasure to work with Jonas!

Interview with Jonas W. K.

  1. Q: Tell us about your studio setup.

  2. A: Amphion Two18, BaseTwo25, Hegel H30 Power Amps, Prism Sound Dream AD-2, Bricasti Design MC1, Lynx Aurora (n) 16+16, Chord Electronics Hugo TT2, iFi Pro iDSD, SPL Passeq, Chandler Curve Bender, HendyAmps Michelangelo, Maselec MDS-2, SSL The Bus+. With a hybrid setup based on high-end analog and digital gear, I'm able to get the best of both analog and digital worlds

  3. Q: How would you describe your style?

  4. A: Modern

  5. Q: Describe the most common type of work you do for your clients.

  6. A: Mastering

  7. Q: What do you like most about your job?

  8. A: I get to meet amazing new people everyday.

  9. Q: Can you share one music production tip?

  10. A: Less is more.

  11. Q: What other musicians or music production professionals inspire you?

  12. A: Everyone inspires me in some way.

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Sofi De La Torre - Flex Your Way Out Feat. Blackbear

I was the Producer, Songwriter, Mixing Engineer in this production

GenresSounds Like
  • ZAYN
  • Rihanna
  • John Legend
Gear Highlights
  • Amphion Two18
  • BaseTwo25
  • Hegel H30 Power Amps
  • Prism Sound Dream AD-2
  • Bricasti Design MC1
  • Lynx Aurora (n) 16+16
  • Chord Electronics Hugo TT2
  • iFi Pro iDSD
  • SPL Passeq
  • Chandler Curve Bender
  • HendyAmps Michelangelo
  • Maselec MDS-2
  • SSL The Bus+
More Photos
SoundBetter Deal

Discounts for batch or album mastering