Does the number of intermediaries in an audio circuit increase the background noise?

I have a class project and I need to get an answer ASAP. When you have an audio circuit, with a sound source, and a sound emitor, and all kinds of cables, does adding intermediaries to the circuit add any extra, parasitic noises on top of the sound you are trying to emit in the first place ? I'm no audio expert, so the simplest and most complete answer possible would be great. Thank you very much in advance.
lastson
Asked Mar 20, 2014

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