Grammy Award-Winning, Multi-Platinum Selling (John Legend, Jhené Aiko, Amber Mark, Tinashe, Kito, ZAYN, Blackbear, 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
Send me an email through 'Contact' button above and I'll get back to you asap.
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
- 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)
- Anna Abreu
- Kasmir
- Kasmir
- Kasmir
- Kasmir
- Rahel (7)
- Merilin Mälk
- Rahel (7)
- Vesala
- Costello*, Waldo, Jussi Rainio, Marko Hietala*, Ilta, Hanna Pakarinen, Eini, Roope Salminen
- Elias Kaskinen
- Elias Kaskinen
- Fredi*
- 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
- 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*
348 Reviews - 89 Repeat Clients
Endorse Jonas W. K.
check_circleVerifiedAwesome master, great communication and quick turnaround! Highly recommended!
check_circleVerifiedGoat
check_circleVerifiedJonas is amazing at what he does and so great to work with! Looking forward to the next one
- check_circleVerified
Working with Jonas was an absolute joy. He is deeply professional, attentive to every detail, and turned my song into exactly what I had imagined — flawless, with nothing to criticize. His work not only met but elevated my vision. I truly look forward to collaborating again.
check_circleVerifiedJonas always does an exceptional job, My fav mastering engineer on soundbetter!
- check_circleVerified
Jonas is the best to work with, he is kind, really talented and always adds a unique touch to each track he works on.
- check_circleVerified
Efficient work through and through. Jonas' professionalism, quality of work, and turnaround time makes collaborations a breeze. 10/10
check_circleVerifiedAgain great mastering from Jonas ! Superb !!!
check_circleVerifiedCame back to Jonas for the 2nd time. He is amazing at what he does and always brings the best out of our songs! Thank you once again :)
check_circleVerifiedLove working with Jonas! Always super reliable and consistently high quality mastering.
check_circleVerifiedJonas was quick, communicated well and delivered and awesome master. Will defiantly use again and recommend :)
check_circleVerifiedJonas always be responsible and supportive.Will be back.
check_circleVerifiedBatting 1000
check_circleVerifiedJonas kills one track after another ! Highly recommended !
- check_circleVerified
Jonas was professional and understood the sound we were going for. Nailed it amazingly well! Look forward to working with him again!
check_circleVerifiedJonas is an amazing Mastering Engineer. Super timely and patient through the process. Would highly recommend.
- check_circleVerified
Jonas is a part of the team at this point. Quality is an understatement.
- check_circleVerified
Amazing sound
- check_circleVerified
Working with Jonas has been by far our best experience with a mastering engineer. Great sound and smooth communication. 👌🏼
- check_circleVerified
Jonas crushed it again
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
- 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
