Monthly Archives: februar 2021

Earthquake Sound Voice Coil Magazine

Voice Coil Magazine cites EQ chief engineer Joseph Sahyoun as speaker guru and highlights the new US Patent 9.294.841 B2 in this following section: “What if we could move more air (“pumping power” or volume velocity) without more piston area or increased excursion? A recent (US Patent 9.294.841 B2) innovation by speaker guru Joseph Sahyoun […]