Mastering With a Human Touch

Orange Polygon was founded on a simple idea: mastering should be a collaborative process, with the music and the people behind it at the centre.

With more than 25 years of music-industry experience, we combine careful listening, professional analogue and digital processing, and direct communication with the artists, producers and labels we work with.

You can talk to us about your music, tell us what you’re looking for and know that there’s a supportive and attentive mastering engineer listening at the other end.

About Orange Polygon

I’m John Gulliver, and I founded Orange Polygon in Hertfordshire, UK, in 2025.

My journey in music began back in 1995, playing in bands and later touring with several of them. Along the way, I’ve played piano and Hammond organ on recordings for other artists. I’ve also developed a long-standing fascination with vintage synthesisers and keyboards, which led to building my own production studio and collecting instruments along the way.

Over the years I’ve recorded and produced my own music, released an album, and worked on mixing and remixing projects for other artists. Through that work I became increasingly interested in mastering — the final stage where careful decisions about balance, dynamics and presentation can bring a finished mix together.

That interest eventually became the focus of my work and led me to establish Orange Polygon as a dedicated mastering service.

My background as a musician, producer and mix engineer still influences the way I approach mastering today. I understand what it’s like to be on the other side of the process, handing over music you’ve spent a great deal of time creating. That’s one of the reasons communication and understanding what you’re trying to achieve are such an important part of the service.

Whether you’re releasing a single, EP or album, you’ll deal directly with me throughout the process, from the first conversation through to the finished masters.

John Gulliver in the Orange Polygon mastering studio

What Clients Say

I’ve worked with John on two projects now and would happily work with him again. He’s responsive, easy to work with, and works quickly and understands what you’re trying to achieve.

He brings an analogue character to the songs without losing what was already there. He also gave useful feedback before mastering and helped with some vocal processing which improved the final result.

Revisions were minor and straightforward — John listened to what we weren’t quite happy with and made the changes without any ego or fuss.

At this point, I feel like I could hand John a project, leave him to it and know I’d get something great back.

BlueTheory

Working with Orange Polygon Mastering has been a game-changer for my music. Every track I’ve sent over has come back sounding fuller, clearer and more alive, without ever losing the character or vibe I intended. The attention to detail is unreal; transients feel tighter, the low end sits perfectly, and the overall polish is exactly what you’d expect from such top-tier professional mastering.

What I appreciate most is the musicality behind the work. It’s not just loudness for the sake of loudness; it’s thoughtful, dynamic, and genuinely elevates the song. The communication is smooth, the turnaround is quick, and the results consistently exceed expectations.

If you’re looking for mastering that brings out the absolute best in your music, Orange Polygon Mastering is the place to go. I couldn’t recommend them more.

Andrew James
Musician and Dance Music Producer