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Belden Audio Cables
https://www.beldencables-emea.com/en/products/pro-broadcast-products/audio_cables/index.phtml#:~:text=Standard%20analog%20audio%20cable%20impedance%20is%2045%20Ohm,100%20to%20120%20Ohm%20shielded%20twisted%20pair%20cables.
Audio Cable Impedance: Use Digital Cable for Digital ...
https://www.tvtechnology.com/news/audio-cable-impedance-use-digital-cable-for-digital-applications
The typical broadcast-quality analog audio cable has a characteristic impedance of 45 Ohms. ALMOST LIKE DC Audio cable with XLR connectors for …
Cable impedance - ePanorama.net | Audio
https://www.epanorama.net/documents/wiring/cable_impedance.html
An audio frequency of 20,000 Hz has a wavelength of 9,750 meters, so a cable would have to be four or five *kilometers* long before it even began to have an effect on an audio frequency. That's why the characteristic impedance of audio interconnect cables is not something most of us have anything to worry about.
Understanding Impedance - Sound on Sound
https://www.soundonsound.com/techniques/understanding-impedance
In audio input and output circuits the impedances are principally resistive to make interconnection easier — the impedance won't change too much over the range of audio frequencies. However, the impedance to radio frequency (RF) signals will often be very different to that at audio frequencies in order to keep RF interference out.
What is Impedance in Audio? Input and Output …
https://virtuosocentral.com/what-is-impedance-in-audio/
In audio devices, impedance is the measure of the resistance of a circuit to alternating current (audio signal). It’s measured in Ohms. The “Z” symbol represents impedance. All audio equipment that receives an input and has an output will have impedance measurements, namely input, and output impedances. More on that later.
Is impedance matching important? : Empirical Audio
https://www.empiricalaudio.com/computer-audio/audio-faqs/should-i-match-impedances
Reactive impedance will change as a cable is lengthened. This is because it is considered a "lumped" Impedance. As the cable grows in length, R, L and C will increase and therefore X L and X C and R will increase as well. At audio frequencies, this is the primary effect. This is why minimizing cable length is always a good idea. Characteristic Impedance
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