Isolated power refers to a power supply system where each output is electrically separated from the others, preventing noise, hum, and ground loops in a pedalboard setup. An isolated power supply ensures that each pedal receives a clean and stable voltage, improving reliability and sound quality. This is particularly important when running multiple pedals, especially digital effects, high-gain distortion, or time-based effects like delay and reverb, which can be sensitive to interference. Many high-quality power supplies, such as the Voodoo Lab Pedal Power series and Cioks DC7, offer fully isolated outputs to maintain the best possible signal integrity.