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About Us

Horizon Mastering was established in 2017 by Maxi Curnow after a decade of working with a multitude of genres and artists around the globe. 

Since Horizon's acclaimed work on Toska's debut album "Fire By The Silos", the mastering style and approach has been sought after by many bands, particularly within the prog community for the preservation of dynamics and the perfect blend of analogue character and modern techniques. 

Each project is a collaboration, working closely with the artist to achieve the end goal in the final stage of the creative process. 

Head Engineer - Maxi Curnow

Before dedicating himself to mastering, Maxi had a background of producing, mixing, engineering, writing to briefs and creating production music.
As a result, the mastering style comes from a very musical place, alongside an in-depth technical understanding and enthusiasm for new sounds.

Background: While studying for his music production degree, Maxi began learning from sound engineers at NYJO and Ronnie Scotts Jazz club. After sound engineering at various venues around Guildford and London, He then became an assistant for Tim Laws (Gabrielle, S Club 7, Liberty X) where he learnt how to brief write. They would later write music together, which was published by BBC and Universal Production music. 

Maxi has had his music used on Louis Theroux, Netflix, Sky Sports, Jay Z vs Kanye, Reggie Yates, Masterchef, Sky Sports Football, and many more. 

After finishing his degree, Maxi was hired as a songwriter/producer for a manufactured project on a long term basis. During these years, he honed his skills for composing and engineering, alongside working with various bands, creating library music and mixing projects. 

All the while, Maxi had been mastering for clients and himself with a deep fascination of the process, and soon decided that he wanted to understand in greater depth the art of mastering.
He then began learning the trade, getting experience from Tim Debney of Fluid Mastering.

This sparked the ambition to pursue mastering, leading to Maxi's decision to build the Horizon Mastering facility.



Horizon uses the best equipment available in both the analogue and digital domains to achieve intricate sculpting and detailed sonic manipulation, while maintaining a musical approach to enhance and enrich your mixes to their fullest potential.


ATC SCM25A Pro and PMC Monitoring

Full range monitoring paired with a custom-tuned room makes for a precise listening environment.


Manley Massive Passive
SPL Vitalizer Mk2-T

Famous Tube EQ that imparts an irreplaceable depth and richness, plus the renowned SPL exciter to add another step of tube circuitry and character


Prism Lyra 2

Arguably the best conversion available, Prism are renowned for transparent AD/DA for a seamless, detailed signal path.

Weiss DS1 Mk3

Weiss DS1 Mk3

Weiss DS1 Mk3

Weiss DS1 Mk3

The gold standard in mastering.

Legendary Compression and Limiting  - The pinnacle piece of TEC Award-winning gear coveted by professional mastering engineers the world over.


The crystalline sound heard on countless records, perfecting the hit albums of the past 25 years. 


Weiss EQ1

Weiss EQ1


In its 25 year history our EQ1 digital equalizer became the go to standard for mastering engineers all over the world. 

Weiss Engineering’s EQ1 has been at the top of the heap since its release in 1996. The EQ1’s dazzling sonic qualities combined with its flexibility as either a Minimum Phase EQ, a Linear Phase EQ, or a Dynamic EQ have made it the must-have digital mastering equalizer. 

“I’ve always been floored by his ability and talent producing genuinely awesome work”

Rabea Massaad

“Maxi is a great guy and wonderful mastering engineer. His level of contact and professionalism was incredible and he guided us through every step of the mastering process for our first EP release. Highly recommended!"

Louis Schultz-Wiremu - Don't Problem Brass Band

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