Mixing & Mastering Engineers, Producers & Songwriters who worked with Halo 4
Optimum Mastering is a custom designed music post-production studio in the dockside city of Bristol. Since opening in 2004, we have established a worldwide reputation for personal service and attention to detail. Our engineers have half a century’s worth of experience turning good music into great records.
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Professional mixing for everybody - indie or major!
My name is Johnny and I make art.
Current sounding and highly versatile songwriter, vocalist and producer here to help you turn your musical vision into a reality.
Mixing and Mastering Engineer, Producer
My goal is to make sure you achieve the sound you dream of. I will turn your tracks into professional, radio-ready mixes and masters. Based in London, I studied at the renowned music school Point Blank Music School where I completed the Music Production Diploma.
Transforming your music with seasoned expertise, crafting audio mixes that capture professionalism, experience, and an artistic touch.
I do remote mixing and mastering of songs
I'm a highly adaptable jazz/commercial saxophonist. Credits include Kelly Clarkson, The Black Keys, Cory Wong and many others. I work as a professional freelance instrumentalist in Nashville, TN and specialize in playing in horn sections and improvisation. Give me direction or let me go on my own- Let's make something beautiful together!
Recent Successes
"Jack Cole did a test master for me and it sounded beautiful, definetly and new client now and it the future. He does great work"
"Mike is simply great! He easily understood every small detail we had in our vision for the song, made our sound solid and saved us from the infinite revisions nightmare by just getting it right with every step of the ..."
"Easy to work with, polite, and caught the vision of my record. This is the second engineer that I could say, knows what he is doing. God willing I will be sending him more records to mix and master for future projects."
"Great guy, a lot of drive, willing to get the job done."
"Mixedbymike was extremely professional, worked quickly, and gave me great results. I had a rather short deadline but he was able to work quick enough to let me reach it. After he gave back the first mix, it only too..."
"Lukas has been great! I definitely recommend him. He has a very fast turnaround time, is very cooperative, and is very professional -- both with the sound quality of the mixes and the way he does business. "
"I tried Leo on one song and he definitely came thru. I came back to him for the next song and once again he performed well. Most of all I like his people skills. It is easy to communicate with this man! "
"It was amazing working with Kamber. Her vocals and piano playing captured exactly what I was looking for. She sings and plays with so much emotion and passion it brought tears to my eyes. Her musical skills are one o..."
"Andrew has a ear for music and sounds.. I am super picky with my art/music.. he made the track sound better than I could imagine.. I will 100% work with Andrew again.. "
"Lukas did a great job mastering our 6 song EP. Great customer service and communication. He was very patient and responded to all the changes we needed. Thanks Lukas!!"
"I was very satisfied with Paul. He is very trustworthy. I will work with him again!"
"I've worked with several mix engineers but Sefi really stands out from the crowd and... will make your music better too!"












