Jonas W. K.

Mastering Engineer

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214 Reviews (211 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.

I'd love to hear about your project. Click the 'Contact' button above to get in touch.

I'd love to hear about your project. Click the 'Contact' button above to get in touch.

214 Reviews - 48 Repeat Clients

Endorse Jonas W. K.
  1. 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.

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

  3. 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.

  4. 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!

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

  6. 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!

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

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

  9. 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!

  10. 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!

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

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

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

  14. Review by Brynn Hulls
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    Jonas did absolutely incredible work on my EP. His mastering is so cohesive and added the extra sound my tracks really needed. I would recommend Jonas to anyone, he is very patient and very professional, definitely a great choice to master your tracks!

  15. Review by draydrizzle
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    Thank you, Jonas. Awesome and on point, as always

  16. Review by Jeremy
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    Jonas is consistently perfect in his mastering work. A pleasure to work with.

  17. Review by Paul
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    by Paul
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    It was a pleasure to work with Jonas again, he is very patient and he really goes out of his way to help and make his clients happy! He is really passionate and ready to make you music and ideas presentable to the world!

  18. Review by Koby
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    by Koby
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    I had a great experience with Jonas. He is extremely friendly and has clear and concise communication. The work was wonderful, nice and clean master and he took care of my project. Thanks!

  19. Review by Jonathan P.
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    Good depth and overall sound

  20. Review by Kunal
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    by Kunal
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    It was a lovely experience working with Jonas. Jonas gave me feedback on some tweaks to do on the mix to make the mastering process better and delivered the final master pretty quickly. The review process was also cordial and fast. Highly recommended.

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