DJ
Pyle Compact Mini Hum Eliminator — 2-Channel Passive Ground Loop Isolator
Product description
What it does: The Pyle Hum Eliminator interrupts ground loops that pick up 60 Hz AC noise, preventing that interference from reaching your signal chain. It uses isolation transformers to decouple grounds so monitors, amps, and mixers hear only the intended audio.
Inputs and outputs: The compact unit provides two independent channels with both 1/4" TRS phone jacks and XLR connectors on each channel. It accepts mono or stereo runs and automatically balances unbalanced sources without a separate power supply.
Construction and materials: Housed in a sturdy metal case with clear labeling, the unit is built for regular studio and stage use. The internal 1:1 isolation transformers are tasked with breaking the loop and balancing audio lines while maintaining sonic integrity.
How to use: Place the box inline between the source (phone/headphone outs, instrument outputs, audio interfaces) and the receiving device (amps, powered monitors, mixers). No power, settings, or drivers are required—just plug the appropriate TRS or XLR connectors into the matching inputs and outputs.
What’s included and warranty: The package contains the two-channel hum eliminator unit and basic instructions for installation. It ships with a 30-day money-back guarantee so you can confirm compatibility with your setup worry-free.
Pros
- Passive, requires no external power
- 1/4" TRS and XLR I/O on two independent channels
- Compact, rugged metal construction for portability
Cons
- Can alter tone in some guitar/amp chains
- Only fixes ground-loop-related hum
- No onboard gain control or switchable options
VerdictA straightforward, power-free solution for eliminating ground-loop buzz. It reliably converts unbalanced outputs to balanced lines, preserves signal clarity in most setups, and is small and durable enough for studio racks or gig bags. Tone changes can occur in some instrument chains, so test it in your rig before committing.
Reviews
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Juro 5/5
Simple studio solution
Bought it to hunt down a studio hum and it removed the offending noise completely. Recordings are clean now. For a compact remedy it did exactly what I needed.
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J. Irza 5/5
Desktop audio now silent
All the 60 Hz hum and laptop buzz I’d had for years disappeared. My desktop output is the quietest it’s ever been — I’m getting another unit for portability.
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george buencamino 5/5
Great little box
This compact unit removed the hiss/hum from our sound system as soon as it was inserted. Easy setup and immediate results.
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Danielle 5/5
It works — would recommend
Simple and effective. I fed a noisy TV headphone output into balanced studio monitors and the box removed the static and hum. The build is basic but solid; I’m happy with the result, though it feels like a simple job made into a finished unit.
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Francisco Lopez B 5/5
Eradicated the buzz instantly
Plug-and-play — it silenced an annoying hum from my setup on first use. Sound stayed clean with no obvious loss. Small, well-built and easy to tuck into my rack.
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Wesley Eastwood 5/5
Does the job
It performs as expected. Quieted the system and is worth trying if you have ground-loop issues.
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Sean 5/5
Works reliably in PA maintenance
As an audio tech, I appreciate the solid feel and clear labeling. I used it while replacing older PA amps and it fixed residual hum issues without fuss.
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Lionel ANDREU 5/5
Plug it in, silence follows
I had a persistent buzz across two different rooms. Routing the interface output into this box and then to the monitors produced absolute silence. Simple and effective.
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J. C. 5/5
Saved my vintage modules
Two older stereo sound modules—one had a loud hum. Comparing units in the mixer, this isolator removed the buzz so I avoided costly repairs. Works exactly as intended.
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Arun Kumar 5/5
Only for ground-loop hum
Helpful but limited: it removes hum caused by ground loops, not noise from faulty preamps or other electronic faults. Know the cause before relying on it.
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Rogelio Martinez 4/5
Good fix for stereo rig, but watch tone
Solved a ground-loop in my stereo guitar rig and seems well made. It did soften the amp’s character—like a slight muffling—so I had to tweak EQ and levels to suit my ear.
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E Flores 5/5
Practical for TimeCode distribution
I use it to pass LTC TimeCode between devices during recordings. With correctly made cables it adds no noise and preserves signal quality — very practical for that application.
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Cainiac 5/5
Handy for experimenting with amps
Used it with an ABY into two tube combos. My first wiring attempts were noisy, but when I isolated one channel and avoided cross-connections it was dead quiet. Works well once you find the right routing.
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