power supply

Power Supplies: Which is More Quiet?

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Some people believe that modern switching power supplies and DC-DC converters are noisier, and that using a traditional larger AC power supply is going to be quieter. Others think that using a battery and isolating the pedalboard from wall power is going to avoid AC noise, ground loops etc, and so this will be quieter. So, which is correct? To… Read More »Power Supplies: Which is More Quiet?

Isolated Power Supplies: What’s the Point?

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Why are isolated pedalboard power supplies used? The lowest cost genuinely isolated pedalboard power supplies start at around $100, and can reach in excess of $300. Simple daisy chain style adapters are available for less than $5, yet these larger isolated supplies remain hugely popular. What possible reasons could there be to pay forty times the price for something larger,… Read More »Isolated Power Supplies: What’s the Point?