80-Ohm Audio Cable vs. 120-Ohm DMX Cable: Why Does It Matter? Apr 3, 2025 0 1987 The main difference between a balanced microphone cable (~80 Ω) and a DMX cable (120 Ω) is characteristic impedance and the application each was designed for. They look similar (same XLR, same appeara... ElectroTAS XLR cable DMX cable audio impedancia 120 ohm Read more