• 365days in studio
  • 1999started with music production
  • 2006started coding own VST / DSP algorithms
  • 2008opened his own mastering studio
  • 700cups of green tea per year
  • 500glasses of good whiskey per year
  • 1000+Happy musicians / clients

MARIAN BREZOVAN (chief mix / mastering engineer)


– More than 20 years of experience in music production, music mixing, engineering (started with prehistoric software like Fasttracker, Propellerheads Re-Birth RB-338)

More than 16 years of experience in DSP software (VST/AU plug-ins, hardware) programming (software developer, worked for Acoustica Inc. U.S.A. Mixcraft, G-Sonique, Kastelheimer, Epralux audio and hardware developer Ampethron ) used by stars like VINAI (Spinnin records), Black Sun Empire (Owners of Blackout music NL) Fraxille (Producer for Justin Bieber, Migos), Zardonic (OSWLA by Skrillex), Penta, Bizzare Contact, Audio Anthem (Grammy award winning producer, Billboard#1 producer), Buunshin (Critical music, Vision recordings), Drunken Kong (Tronic, Terminal M, Octopus records), Teddy Killerz (Ram records, Monstercat) and more

– Made plug-in Swede Trap Bass with Swede of 808 Mafia (producer of Lil Wayne, Dj Khaled, Gucci Mane, Nas, Farruko…)

More than 14 years of experience with running my own mastering business (previously co-owned A.D. mastering studios)

Electrotechnical education (Deep knowledge of analog equipment and PCB circuits)


Everything started when Marian was only 5yo kid. His father was electronic construction engineer and later managing director of propagation at large local communistic concern Tesla which was producing hi-end electronics (one of their factories produced also audio vacuum tubes now famous worldwide under brand JJ Tubes). Thanks to his position and contacts, Marian’s family always had hi-end toys available including: first computers called Didaktik and also a lot of interesting audio gear.

Marian says: “As a young boy I enjoyed listening to vinyls and old tapes but I had also available a lot of tools like graphic equalizers, exciters, tube amplifiers etc. My family is joking that I started my career at young age when I was listening to old vinyls for long hours and experimented with various settings of equalizers to make them sound the best.” This may be funny but interesting to remember because as one of our friends, a neurophysiologist says “brain has a possibility of neuroplasticity – some parts of the brain become stronger and more powerful than others if used frequently, and especially at younger age – we learn things better and faster and you can become a expert in some area if you start very early” and history confirms this theory – best musicians, painters, sportsmen started already at very young age. “Tuning equalizers and making music sounding better and better was my hobby at age of 5 and it still is! I just have bit more knowledge” Marian says.

“Since I had available most powerful computers at young age, I soon started to go deeper and instead of playing vintage videogames I preferred to learn new things, I started producing first graphic design, learning to code my own software and later producing first computer music. Thanks to my older friend we firstly discovered prehistoric software like Fasstracker and later Re-Birth 338. Producing oldschool electronic music became our big hobby, we were poor students and possibilities were very limited, we dreamed of our own hardware synthesizers and effects because software alternatives had terrible sound at that time but hardware was very expensive. So I said I must learn to produce our own software algorithms with the same quality of oscillators, filters etc. as hardware. After a lot of hard times spent with learning and experimenting with DSP algorithms I succeeded and produced the first VST plug-ins, effects and synthesizers. Later I established my own company and worked with many respected developers like Acoustica Inc. USA (producer of Mixcraft), Pluginboutique/Loopmasters, G-Sonique, Kastelheimer, Epralux, Ampethron hardware and so. My synthesizers and effects are used by worldwide stars like VINAI (Spinnin records), Black Sun Empire (Owners of Blackout music NL) Zardonic (OSWLA by Skrillex), Penta, Bizzare Contact, Audio Anthem (Grammy award winning producer, Billboard#1 producer)…
I made plug-in Swede Trap Bass with Swede of 808 Mafia (producer of Lil Wayne, Dj Khaled, Gucci Mane, Nas, Farruko…) More than 15 years of active DSP coding gave me highly valuable knowledge of digital audio, algorithms, tools and tricks. I graduated from electrotechnical school so I also understand electronic circuits of mastering hardware and all alchemy which happens during analog and digital processing of audio, including smallest details and relations between processors and special techniques used. Parallely, we established our own mastering studio A.D. with partners and worked with many local and international artists and labels. Some time later I decided to run my own mastering facility to follow my vision of perfect sound and utilize my deep knowledge of mastering, mixing, music production DSP coding and analog electronics construction. So I’m here to offer all my skills for you, if you are looking for modern trendy loud sound, with heavy bass, lot of punch, unique analog color/texture and energy or vice versa crystal transparency and dynamics you are at the right place. Making perfectly sounding final products is a real joy for me and I’m sure we will make a lot of killer sounding records together,“ says MARIAN (chief mix / mastering engineer of onlinemasteringstudio.eu)

Marian Brezovan photo, mastering engineer

Marian „Brezekhiel“ Brezovan, chief mix / mastering engineer of onlinemasteringstudio.eu

tweaking of the sound

tweaking of the sound