Jonas W. K.

Mastering Engineer

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188 Reviews (185 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.

Send me an email through 'Contact' button above and I'll get back to you asap.

188 Reviews - 43 Repeat Clients

Endorse Jonas W. K.
  1. Review by Andrew
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    by Andrew
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    Jonas does careful work and ensures you get what you need out of it- happy to have worked with him again :)

  2. Review by Matt J.
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    Jonas has an incredible ear and is very easy to work with. He is professional, responsive, and timely, all while maintaining care in his work. I trusted him with one of my favorite songs to date and he helped to elevate it exactly how I wanted. Highly recommended and it was a pleasure to work with him!

  3. Review by nabii
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    by nabii
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    Amazing quality, speed, and communication as always! This is my second time working with Jonas and the experience this time around was even better than the first. Jonas really takes it to the next level with his service to make sure you get what you're looking for - highly recommend!

  4. Review by Emma R.
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    Jonas is incredibly talented, professional, and quick! I would highly recommend hiring Jonas if you are looking for efficient high quality work.

  5. Review by Andre N.
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    Jonas did another incredible job as always. Great mastering engineer and great person!

  6. Review by Jeremy
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    by Jeremy
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    Keep coming back to Jonas for more work because he's so good and so quick!

  7. Review by Jeremy
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    by Jeremy
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    Jonas is so great to work with. Super nice, amazing mastering engineer and very quick!

  8. Review by Eric O.
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    Fast delivery and good Master, all well!

  9. Review by nufco
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    by nufco
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    Jonas is always a pleasure to work with! Couldn’t recommend enough

  10. Review by josue
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    by josue
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    I mix my own music so when u get a song mastered it brings up the flaws in the mix, thankfully Jonas doesn't complain about the amount of mix revisions I send him. A1 engineer cant go wrong w him

  11. Review by Plamen D.
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    Jonas is very professional and knows his craft. He delivered to my expectations and facilitated all my requests. He is super friendly and easy going. A pleasure to work with. Highly recommended.

  12. Review by Doug Lane
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    Always great working with Jonas!

  13. Review by Andre N.
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    Again Jonas did an incredible job and was very patient with revisions. Great ear for mastering, will work with him again!

  14. Review by Lordninjabeats
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    great great great

  15. Review by Andrea V.
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    Warning: Working with Jonas is addictive - you might find difficult to work with somebody else. I lost count of how many songs I sent him for mastering. Delivery is always fast, outcome is excellent and communication is friendly and transparent.

  16. Review by kandrax
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    No matter which track or which artist I'm producing: Jonas is my one and only professional for mastering. Always. And I'm always happy about the work he does.

  17. Review by David
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    by David
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    Jonas is a genius, pure and simple. In the words of Tina Turner, "Simply the best." Work with him.

  18. Review by David
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    by David
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    Jonas is THE BEST. I will never work with any other mastering engineer. And he is a delightful person. Cheers.

  19. Review by Jeremy
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    by Jeremy
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    Jonas was so easy to work with, very communicative and helpful and most importantly – did an incredible job on mastering!

  20. Review by Karina
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    by Karina
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    Jonas did a great job mastering my song! Took the time to listen to and incorporate every request. Would definitely recommend!

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