Do the power supplies and cables of audio equipment affect the sound?

Explains the relationship between power cables, dedicated breakers, down transformers, outlet polarity, and sound. Add noise to 100V to reproduce the hum of a transformer. Predict the effect of clean power.
*Reference products*
Power cable
amzn.to/2TakojY
Down transformer
amzn.to/35epYaG
Clean power supply
amzn.to/2Takloi
Audio dedicated tap
amzn.to/3lZyuBc
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