Kostas Siozos - Sound of Doom

Kostas Siozos is a American-Greek musician, producer, and sonic architect based in Los Angeles, California, founder of Black Kaiser and Sound of Doom recording studio.

Forged in the spirit of Black Sabbath, driven by the raw force of Motörhead, and shaped by the progressive depth of Tool, his music blends crushing heaviness with atmosphere, groove, and intention. Influenced by artists like Metallica, Alice in Chains, and Mastodon, Kostas builds soundscapes where power meets precision and emotion meets discipline.

At The Sound of Doom — his hybrid recording sanctuary in Hollywood — analog Neve warmth collides with an SSL-inspired mix philosophy and modern digital tools, shaping bold, high-impact productions with depth and authority.

This channel documents the pursuit:
the writing, the recording, the experimentation, the grind and the relentless mission to leave a mark through sound.

Heavy. Intentional. Uncompromising.

Welcome to the world of Kostas Siozos & the Sound of Doom.