No Harmonics

No Harmonics is a 2025 album by the Athens-based electronic producer Kostas Staikos, known professionally as Substak. Released on the Leipzig-based non-profit micro-label Adventurous Music, the album serves as a stark exploration of anti-harmonic sound design, prioritizing deep, subsonic bass and minimalist textures over traditional melodic structures. The work is characterized by its heavy, rumbling undercurrents and sparse, aggressive percussion, creating an aesthetic that feels both stripped-down and physically imposing. Substak has maintained a prolific output across various experimental labels, consistently navigating the intersections of dark ambient, drone, and deep techno. This release exemplifies his focus on deep listening experiences, utilizing intentional dissonance to craft a dense, immersive sonic environment.