Valve amplifier BLOCK is designed according to HI-FI audio rules. Components which spread most electromagnetic interference (AC, power transformers, chokes) are placed in closed compartments further away from audio lines. The main sound board rises on hinges to enable dusting electronics without the need to disconnect anything. The amplifier is made from stainless steel and aluminum.

Electronics design by Marian Kopecki.
Photos courtesy of Przemek Szuba (
Academy of Fine Arts in Cracow, Industrial Design Department, semester project under Dr Marek Liskiewicz