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11.Do power cables make a difference for sound quality?Yes they do. Power cables radiate pulses* that influence your interconnects up to distances of a meter. These pulses are caused by the rectifier which is standard for almost every piece of Hi-Fi, and is being picked up by nearby interconnects and enter your system where they interfere with your music signal. Siltech power cords do not radiate these pulses because of their X-Balanced and latest Dual-Balanced construction.
*These pulses are double the main frequency;
i.e. 100Hz or 120c/s.
Cause is the rectifier
together with the always charged electrolytic
capacitors; the current needed to fill up
those capacitors only flows in the top of the
sine wave during a very short period. So
instead of an average current consumption
from the mains, the current peaks at twice
the cycle sending out magnetic fields ranging
from 100c/s to about 5000c/s.
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