Raw Tracks to Finished Mixes
Whether they were recorded in your bedroom, at the finest studio, or at the local music club
I'm Jon Sosa
Welcome to my home here at Summation Mix.
As an online mixing and mastering engineer I work with rock and indie bands from all over the world to perfect their next release.
Ready to get started?
"Jon is a talented listener and engineer. His down to earth approach puts you at ease. Every time I interacted with him I learned something new. I'd recommend Jon's services because he is passionate and professional."
Carlos Rodriguez, Guitarist & Band Leader- Mezcal Music
Grover Beach, California
"Working with Jon was a great experience throughout the whole process. He put in the extra time and effort to schedule zoom meetings, making sure that we were always on the same page. He really helps to create the vision you have for a song, as well as offer up new ideas and techniques. It really felt like he wanted to make our songs as good as they can be. Now that the song is mixed I have nothing more to ask for. Jon is a great engineer with great attention to detail. I learned a lot by working with him and can only hope to continue working with him in the future."
Jared Payzant (Corduroy and The Striped Man)- Singer & Multi Instrumentalist
Long Beach, California
"After a really helpful mix consultation call with Jon last Spring for a song I was trying to iron out, I decided to get back in touch with Jon this Fall to help me improve my mixes and master my latest EP.
While I have a lot to learn, I'm used to doing everything on my own especially since my music has a lot of electronic elements. Doing mix evaluation calls with Jon, I've been able to improv my mixes and have learned so much to improve my work in the future "