This personal research understands the concept of acousmatic as a contemporary praxis in sound art. This ancient Pythagorean practice, -utilized to a strange sound, - shares the essence of nowadays virtuality. As devices’ screens for example share features and processes with the old Pythagorean curtain. Although acousmatic practice avoids any visual representation, and hides the internal functioning of communication, behaving like a black box. External stimuli directly affect it, triggering sound-image feelings and emotions that are (un)known to us. Rather than investigating the response triggered by these inputs, the research aims to analyse the internal resonances of these black boxes. The more complex machines become, the simpler our relations to them are. The devices and formats used in sound-intermedia practice act as “black boxes”, but this apparent “blackboxing” caused by the use of the technological in the codes of the sensible performs as a catalyst for the apprehension of sound and its esthesic exploration.