Sławek Wiesławski

Co-owner, sound engineer, and a master of the difficult art of recording drums. Sławek is a talented producer with extensive experience, gained over more than three decades of working with various bands and artists.


Wojtek Wiesławski

Co-owner and sound engineer with a wealth of experience and achievements, has recorded more than 300 albums. He has worked with bands such as Behemoth, Decapitated, Hate, Hour of Penance, ŁydKa Grubasa, Luxtorpeda, Kwiat Jabłoni, Vader, and many more.

As a teacher, he willingly shares the knowledge he has gathered during his 25 years as the chief mastering engineer at Hertz Recording.


Karol Andres

Karol, a Sound Engineering graduate from London SAE, has been trained by industry experts and is fueled by a relentless passion for music. Each project receives his wholehearted dedication and skills, resulting in high-quality recording and mixing solutions.