
Grammy Award-Winning, Multi-Platinum Selling (John Legend, Adam Lambert, Jhené Aiko, Amber Mark, Tinashe, Kito, ZAYN, Blackbear, ARKAI, 24hrs, NVDES, FLETCHER, Hatsune Miku, Johan Lenox, 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.
My 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).
My Services:
- Analog Stereo Mastering $100
- Analog Stem Mastering (8 stems) $150
- Analog Summix (combines the precision of stem mastering with the depth of mixing, 16 stems $300
- Mixing (incl. Analog Stereo Mastering) at $450
🏆 https://www.grammy.com/artists/jonas-w-karlsson/
Click the 'Contact' above to get in touch. Looking forward to hearing from you.
Credits
Discogs verified credits for Jonas W. Karlsson- Various
- Tuuli (5)
- Hans On The Bass
- Hans On The Bass
- Elokuu
- Various
- Elokuu
- Juno (12)
- Ricky-Tick Big Band & Julkinen Sana
- Heikki Kuula Feat. Pää Kii & Paperi-T
- Teflon Brothers
- Anna Abreu
- Kasmir
- Kasmir
- Isac Elliot
- Kasmir
- Kasmir Feat. Saara (8)
- Sofi De La Torre
- Sofi De La Torre
- Robin (56)
- Juulia (2)
- Mariska
- Kasmir
- Anna Abreu
- Madeline Juno
- Kasmir
- Benjamin (44)
- Kasmir
- Kasmir Ft. Sini Yasemin
- Kasmir
- Kasmir
- John Legend
- John Legend
- Ricky-Tick Big Band & Julkinen Sana
- Nopsajalka
- Damp Cookie
- Tuuli (5)
- Jesse P Åck Redrama
- Elokuu
- Elokuu
- Jesse P
- Juno (12)
- Redrama
- Teflon Brothers
- Heikki Kuula
- JAG (9)
- Kasmir
- Kasmir
- Kasmir
- Juulia (2)
- Kasmir
- Anna Abreu
- Kasmir
- Kasmir
- Kasmir
- Kasmir
- Merilin Mälk
- Rahel (7)
- Vesala
- Costello*, Waldo, Jussi Rainio, Marko Hietala*, Ilta, Hanna Pakarinen, Eini, Roope Salminen
- Elias Kaskinen
- Elias Kaskinen
- Fredi*
- Disco (5)
- Lyyti
- Nopsajalka
- Damp Cookie
- Salomo (3)
- Discobonus, Eddy Huntington
- Various
- Various
- Tuuli (5)
- Various
- Jesse P Åck Redrama
- Elokuu
- Various
- Elokuu
- Various
- Various
- Jesse P
- Juno (12)
- Ricky-Tick Big Band & Julkinen Sana
- Heikki Kuula Feat. Pää Kii & Paperi-T
- Anna Abreu
- JAG (9)
- Nikolai Alho
- Various
- Various
- Smurffit*
- Mustat Silmät
- Anna Abreu
- Robin (56)
- Kasmir
- Kasmir
- Various
- Isac Elliot
- Kasmir
- Kasmir
- Kasmir
- Various
- Kasmir
- Kasmir Feat. Saara (8)
- Traum:A Feat. Jak Polo
- Robin (56)
- Kauniit & Uhkarohkeat
- Juulia (2)
- Kauniit & Uhkarohkeat
- Robin (56) Feat. Sanni
- Jake Miller (3)
- Mariska
- Kasmir
- Anna Abreu
- Madeline Juno
- Kasmir
- Benjamin (44)
- Anna Abreu
- Kasmir
- The Rasmus
- Kasmir Ft. Sini Yasemin
- Isac Elliot
- Kasmir
- Ida Paul & Kalle Lindroth
- Kasmir
- Danny (13)
- John Legend
- John Legend
- 5miinust, Puuluup
- Merilin Mälk
- Merilin Mälk
- André Nowak
- Saya Noé
- Costello*, Waldo, Jussi Rainio, Marko Hietala*, Ilta, Hanna Pakarinen, Eini, Roope Salminen
- Elias Kaskinen
- Elias Kaskinen
- Fredi*
- Pekka Ruuska
- DJ Renovation
Endorse Jonas W. K.454 Reviews - 118 Repeat Clients
check_circleVerifiedAmazing work!! My song sounds so much better.
check_circleVerifiedExcellent experience with Jonas—a spectacular improvement to the sound! I hope to return soon with more music so Jonas can work his magic!
check_circleVerifiedJonas is professional, prompt, skilled & affordable. He gave our song the extra boost it needed to really pop. I would definitely recommend him to anyone looking for a quality mastering engineer!
check_circleVerifiedNailed it right off the bat, super professional and took all my notes into account! Looking forward to working together again :)
check_circleVerifiedThis is my second time working with Jonas and once again he's exceeded my expectations! His musical sensitivity, attention to detail, and ability to capture the emotion of a song are exceptional. The final master sounds absolutely beautiful.... rich, warm, powerful, and full of life! He's incredibly talented, patient, and a pleasure to work with. I couldn't be happier. Highly recommended! 😊
check_circleVerifiedIt was a pleasure working with Jonas! The tracks he mastered for my upcoming release had depth, dimmension, and clarity. The song ranged in style from mellow jazz to more intense, produced R&B, and each finished track felt completely appropriate to its genre. Jonas was professional, prompt, and so easy to work with. Wholeheartedly recommend!
check_circleVerifiedAlways an absolutely pleasure to work with Jonas! He's amazing and I can basically always just let him do what he does best and it's already gonna sound dope, but when I do occasionally have feedback he's amazing in working that in too.
check_circleVerifiedJonas did an amazing job on the master. He understood the direction of the song perfectly.
The communication was smooth, professional, and very easy throughout the process. I’m really happy with the result and would definitely love to work with him again on future projects.
He was also a pleasure to work with, and I’m looking forward to working with him again.
check_circleVerifiedJonas did an excellent job mastering my track. He really brought out the power, punch and clarity of the production while keeping the character and feel of the original mix intact. The final master sounds polished, wide and powerful, and translates beautifully. He was also very responsive, professional and a pleasure to work with throughout the process. I’m extremely happy with the result and would definitely work with him again. Highly recommended!
check_circleVerifiedJonas was professional and communicative, and most importantly, his work is top notch. Will definitely be reaching out to him again!
check_circleVerifiedJonas is one of a kind. He always delivers a great product, is easy to work with, and gets it done quickly.
check_circleVerifiedJonas did an amazing iob. Amazing turn around time. With even better results. I absolutely will be contacting him again for my future releases. Im super happy with the results!
check_circleVerifiedJonas crushes it every time.
check_circleVerifiedJonas does an excellent job and consistently elevates our tracks. He is a great and prompt collaborator and is awesome to work with. Would 100% recommend for all mastering needs!
check_circleVerifiedJonas is a master of his craft. I will be coming back!
check_circleVerifiedMakes Fantastic Masters!
check_circleVerifiedJonas makes some of the best masters I've ever gotten back from an engineer. He makes things loud with great taste !
check_circleVerifiedThis is my second time working with Jonas, and once again, I’m really happy with the master. He communicates clearly, is professional, and consistently delivers high-quality work quickly. It’s always a pleasure working with him, and I’d definitely recommend him!
check_circleVerifiedGreat to work with, the patience and understanding of a saint! Professional and timely. Will be back!
check_circleVerifiedAnother great experience working with Jonas. He's become an integral part of my team and will continue to be for the next project and the next.
Interview with Jonas W. K.
Q: Tell us about your studio setup.
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
Q: How would you describe your style?
A: Modern
Q: Describe the most common type of work you do for your clients.
A: Mastering
Q: What do you like most about your job?
A: I get to meet amazing new people everyday.
Q: Can you share one music production tip?
A: Less is more.
Q: What other musicians or music production professionals inspire you?
A: Everyone inspires me in some way.
I was the mastering engineer in this production
- play_arrowShowreel
- Mastering EngineerAverage price - $100 per song
- Mixing EngineerAverage price - $300 per song
- Dolby Atmos & Immersive AudioContact for pricing
- Rihanna
- John Legend
- Justin Bieber
- Amphion Two18
- BaseTwo25
- Prism Sound Dream AD-2
- dCS Lina Headphone Amplifier
- SPL Passeq
- SPL PQ
- Maselec MDS-2
Discounts for batch or album mastering



