Another big passion of his is collecting, restoring and modifying vintage audio equipment and microphones.

In late 2019, after designing and prototyping for almost six years and with the help of electronics wizard Klaus Trippl of TRIKTRONICS, the blatantly named "FREIFELD Spectrum Shaper", a one-of-a-kind Passive Mastering Equalizer of unparalleled size, quality and functionality finally saw the light of day...

The thin line between the technical and the artistic side of things runs right through Yannilos work.

When not on stage or in the studio, he also works as an engineer doing live sound, acoustic design and technical consulting at some of Austrias most important venues and festivals, including Reaktor Wien, Porgy&Bess, Wiener Konzerthaus, Brucknerhaus Linz, Wien Modern, Jazzfestival Saalfelden, Elevate Graz and many more.