A ground loop isolator, also sold as a hum eliminator, is an isolation transformer that passes audio through cleanly while breaking the earth path that causes mains hum and buzz.
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A ground loop isolator, also sold as a hum eliminator, is an isolation transformer that passes audio through cleanly while breaking the earth path that causes mains hum and buzz.
Stop mains hum and buzz with a ground loop isolator. These transformer-isolated hum eliminators pass your audio signal cleanly while breaking the ground loop that causes 50Hz hum.
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$164.99 17% OFF RRP $199.95
Stop mains hum and buzz with a ground loop isolator. These transformer-isolated hum eliminators pass your audio signal cleanly while breaking the ground loop that causes 50Hz hum.
About Ground Loop Isolators
A ground loop forms when interconnected audio equipment shares more than one path to earth, and the result is the familiar low-frequency mains hum or buzz in your signal. A ground loop isolator, often sold as a hum eliminator, sits in the signal path and uses an isolation transformer: the audio passes through cleanly while the ground connection between devices is broken, so the hum disappears.
Units like the dual-channel ART DTI and Radial Twin-Iso make quick work of hum between mixers, powered speakers, computers and AV systems. Transformer isolation is also why passive DI boxes double as hum eliminators on stage, and many DIs add a ground lift switch for stubborn loops. Browse the wider range of audio signal processors, or see audio adapters for connection changes that do not need isolation.
Yes. Ground loop isolator, ground loop noise isolator, hum eliminator and audio isolator all describe the same device: an isolation transformer that passes audio while breaking the ground path between two pieces of equipment. The name varies by manufacturer, not by function.
Hum appears when connected devices are earthed through more than one path, letting a small current circulate through your audio cabling. In Australia it is heard as 50Hz mains hum. It is most common when audio gear, computers and powered speakers are plugged into different power points.
A quality isolation transformer passes the full audio range with no audible change, though very cheap units can roll off low frequencies. Avoid lifting the ground on equipment that needs it: condenser microphones, for example, require a connected ground for phantom power to work.
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