Audio power conditioners help reduce noise by filtering electromagnetic and radio-frequency interference from the AC power feeding connected equipment. This can lower the audio noise floor, reduce hum, and help sensitive components receive cleaner power for more consistent system performance.

Audio power conditioners are available in rack-mount formats, with options such as rack ears, back-of-rack mounting, reversible brackets, and adjustable feet for cabinet or shelf installation. For low-profile flat-panel systems, recessed in-wall conditioners provide a concealed installation, while some chassis designs can also sit on a shelf or mount in a rack.

Choose an audio power conditioner with voltage protection when connected equipment may face sustained under- or over-voltage conditions, since it can disconnect the load and reconnect it when voltage returns to a safe level. Choose power sequencing for larger audio systems with amplifiers and other high-current equipment, as it staggers startup and shutdown to help limit inrush current, reduce circuit interruptions, and minimize speaker pops.

An audio power conditioner should have enough AC outlets for your receiver, amplifier, source devices, display, and other connected equipment, with a few spare outlets for future additions or power adapters. Choose models with protected connections for any coax, Ethernet, or telephone lines that enter the system, and consider isolated or sequenced outlets when your setup includes multiple components or high-current amplifiers.