@rok2id "Because speakers are driven at low impedance (typically 4 or 8 ohms) and high current, speaker cables are, for all practical purposes, immune from interference from EMI or RFI, so shielding isn’t required”
-there is a loop inductance of the speaker cable as well, which sometimes resonates with speaker’s crossover circuit, and gives amp hard time, to be stable! Kimber kable uses minimizing loop inductance direction in their speaker cable designs, using those in my setup improved SQ significantly.
-most amplifiers have feedback loop, which can be affected by very high frequencies from RFI/EMI sources. I use low loop inductance Kimber Kable cable to lower such impact in my system.
-some of 4/8 Ohms speakers with higher order filter crossovers have much lower impedance than rated, sometimes 1Ohm, thus higher output current amp does sound better with them.
