How do you solve a problem like ground loops? This common audio-based gremlin can add an unpleasant hum and buzz to the sound of a PA installation, studio gear, or even your trusty stereo HiFi system. Thankfully, there are plenty of ground-loop solutions out there, so you can find the right tool for the job.
Clean Up the Audio with a Ground Loop Isolator
Your average ground-loop isolator will have one or more channels with an input and output, where each channel is kitted out with a special transformer that transfers sound signals magnetically rather than electrically. This effectively 'skips' any DC-related noise, leaving you with clean and hum-free sound. Some isolators can treat both balanced and unbalanced audio signals, and some isolators will also come fitted with noise level controls.
Alternative Solutions
The best way to avoid any ground-loop issues is to hook all of your audio equipment up to the same power group. Using electronically balanced signal cables over longer distances and keeping them well clear of any power cables, video cables or other signal-carrying cables also helps. If you need other stage and studio audio tools, see our range of DI boxes and peripheral audio equipment.
Frequently Asked Questions About Ground Loop Isolators
What is a ground-loop isolator?
A ground-loop isolator is a handy tool used to remove electronic noise from an audio signal. It does this via a specialised transformer which transfers the audio signal magnetically rather than electrically.
How do ground-loop isolators work?
Your average ground-loop isolator will have one or more channels with an input and output, where each channel is kitted out with a special transformer that transfers sound signals magnetically rather than electrically.
Are ground-loop isolators directional?
Often, both ends of an isolator can be used as an input or output.
