Benchmark Media Mythbusters
"Switching supplies are noisy."
"Linear power supplies are best for audio."
About 5 years ago, Benchmark stopped putting linear power supplies into their new products, and replaced them with switching power supplies. They did this because linear supplies are too noisy. Yes, you read that correctly, Benchmark says linear supplies are noisy!
A well-designed switching power supply can be much quieter than a linear supply! Find out why!