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Ebtech Hum Eliminator
Description
- Uses 1:1 isolation transformers to break loop antenna and balance audio lines- Also converts balanced and unbalanced signals and cable types
- 1/4" smart jacks can accept any combination of mono or stereo plugs
- Passive device (No power required)
- Cold-rolled steel housing. Two Year warranty.
Firsthand experiences
Comments from forums and Reddit
Discussed in Insane buzz/hum with new amp - why he do me like dat? in the TalkBass community
OldSchoolFlats
Once, I had to use one of these: [link] I was using both my laptop (MIDI) and bass, and had a ground loop somewhere. The hum-eliminator places transformers (or caps?) in-line with your audio cables: transformers/caps pass only AC. Eliminates the ground-voltage differential. Generally these are more studio-oriented, and ... ... more
Discussed in Best way to eliminate ground loop noise? in the TalkBass community
OldSchoolFlats
You need to distinguish betwee "line level" and "instrument level", but something like this can be useful: [link] Also, when plugging things into AC, you want to plug everything into a central point (or circuit) where possible, to avoid ground-loop in the first place. ... more
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