How Far Can You Run RCA, XLR, and 3.5mm Cables?
Ask ten sources how far you can run an RCA cable and you'll get answers from three meters to two hundred feet — a sixty-to-one spread. This episode digs into what actually limits cable runs: capacitance forming a low-pass filter with your source impedance, common-mode rejection in balanced lines, and the counterintuitive fact that loud line-level signals are harder to drive long distances than tiny mic signals, because current — not voltage — is the constraint. Along the way: why audio cables are not transmission lines, why a single article can contradict itself about the same connector, and…
The skinny
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