The Best Ground Loop Isolator – What You Need To Know

Best Ground Loop Isolator

When you have a ground loop, you don’t want electricity flowing through the same path two times. This can cause interference and create a ground loop. What is a ground loop? It’s a system that allows electricity to flow through a single path instead of two separate paths. This creates a voltage differential and can cause interference. That’s exactly what you don’t want to happen with a ground loop. There are many types of ground loops and isolators. You may not even know you have a ground loop until you fix it. Fortunately, fixing a ground loop is easy and inexpensive. This article lists the best ground loop isolator and how to fix your own problem.

Quick table with our top 3 picks:

Product
BESIGN Ground Loop Noise Isolator for Car Audio/Home Stereo System with 3.5mm Audio Cable
InstallGear Ground Loop Noise Isolator, Amplifier Noise Filter for Car Audio & Home Stereo, Feedback Loop Isolator, Car Stereo Noise Suppressor Reducer Alternator, Eliminate Buzzing Noise in Audio
ZIOCOM Ground Loop Noise Isolator, Noise Filter, Eliminate The Buzzing Noise for Your Car Audio System/Home Stereo with Jack 3.5mm Audio Cable
BESIGN Ground Loop Noise Isolator for Car Audio/Home Stereo System with 3.5mm Audio Cable
InstallGear Ground Loop Noise Isolator, Amplifier Noise Filter for Car Audio & Home Stereo, Feedback Loop Isolator, Car Stereo Noise Suppressor Reducer Alternator, Eliminate Buzzing Noise in Audio
ZIOCOM Ground Loop Noise Isolator, Noise Filter, Eliminate The Buzzing Noise for Your Car Audio System/Home Stereo with Jack 3.5mm Audio Cable
Product
BESIGN Ground Loop Noise Isolator for Car Audio/Home Stereo System with 3.5mm Audio Cable
BESIGN Ground Loop Noise Isolator for Car Audio/Home Stereo System with 3.5mm Audio Cable
Product
InstallGear Ground Loop Noise Isolator, Amplifier Noise Filter for Car Audio & Home Stereo, Feedback Loop Isolator, Car Stereo Noise Suppressor Reducer Alternator, Eliminate Buzzing Noise in Audio
InstallGear Ground Loop Noise Isolator, Amplifier Noise Filter for Car Audio & Home Stereo, Feedback Loop Isolator, Car Stereo Noise Suppressor Reducer Alternator, Eliminate Buzzing Noise in Audio
Product
ZIOCOM Ground Loop Noise Isolator, Noise Filter, Eliminate The Buzzing Noise for Your Car Audio System/Home Stereo with Jack 3.5mm Audio Cable
ZIOCOM Ground Loop Noise Isolator, Noise Filter, Eliminate The Buzzing Noise for Your Car Audio System/Home Stereo with Jack 3.5mm Audio Cable

Top 9 Best Ground Loop Isolator Reviewed

Bestseller No. 1
BESIGN Ground Loop Noise Isolator for Car Audio/Home Stereo System with 3.5mm Audio Cable
  • Ground loop filter noise isolator, eliminating the hiss, buzz and interference caused by ground loops which happens when the audio source and the speaker use the same power source in some car speakers / home stereo systems when using the Bluetooth receiver.
  • You can enjoy the clean and clear music/audio by eliminating the current noise in some car speakers / home stereo systems.
  • Works with any device that has a 3.5mm jack including smartphones, tablets, mp3 player, speakers, when grounding issues persist. You could also use with a Bluetooth Receiver/Bluetooth Hands-free Car Kit in your Car Audio System/Home Stereo.
  • Being so mini, portable and light, plug and play, no battery need or button, all you need to do is to plug in the ground loop isolator
  • Portable, light-weight and plug and play without any complicated setup. Package Contents: Besign Ground Loop noise Isolator with 3.5mm Audio Cable, User Manual.
Bestseller No. 2
ZIOCOM Ground Loop Noise Isolator, Noise Filter, Eliminate The Buzzing Noise for Your Car Audio System/Home Stereo with Jack 3.5mm Audio Cable
  • Eliminating Buzzing Noise : Eliminating the buzzing noise, caused by ground loops which happens when the audio source and the speaker use the same power source in some car speakers / home stereo systems when using the Bluetooth receiver.
  • Working Principle: Filters out noise instantly for clear, uninterrupted, uncompromised sound by eliminating the current noise in some car speakers / home stereo systems
  • Plug and Play: Nifty little gadget that just plugs in; no other setup needed.
  • Wide Compatibility: Works with any audio device that has 3.5mm audio jacks, for your Car Audio System/Home Stereo.
  • Note: The Ground Loop Isolator connect to the AUX Jack in car to eliminate noise.You will enjoy good quality sound when use it with Ground Loop Noise isolator.
Bestseller No. 3
JABINCO Ground Loop Noise Isolator,for Car Audio/Home Stereo System with 3.5mm Audio Cable (Black)
  • Eliminating the buzzing noise, caused by ground loops which happens when the audio source and the speaker use the same power source in some car speakers / home stereo systems when using the Bluetooth receiver.
  • The working principle of this noise isolator is to achieve a clear speech/music by eliminating the current noise in some car speakers / home stereo systems.
  • The Ground Loop Isolator connect to the AUX Jack in car to eliminate noise.You will enjoy good quality sound when use it with Ground Loop Noise isolator.
  • Works with any portable device that has 3.5mm audio jacks, for your Car Audio System/Home Stereo, when grounding issues persist. Also used with a Bluetooth Receiver/Bluetooth Hands-free Car Kit in your Car Audio System/Home Stereo.
  • We are manufacturers. If you buy more than 100. There will be a favorable price.
Bestseller No. 5
BOSS Audio Systems Ground Loop Isolator B25N noise Filter for Car Audio Systems
  • Reduces High Pitched Whine Alternator Noise caused by the car's electrical system
  • Ground Loop Isolator Noise Filter
  • Always Use High Quality RCA Cables for your Audio System
  • Dimensions: 3.4 x 1.5 x 1.5, Unit Weight: .30 Lbs. Tips: Ground each amplifier independently. Same thing if you have added stiffening capacitors, go to a separate ground for the cap
Bestseller No. 6
RECOIL GLIRCA 2-Channel RCA Stereo Ground Loop Isolator Designed for Audio Signals Eliminate Noise
  • Eliminates ground loop noise between the audio source and radio. For use with portable devices that have RCA audio outputs, including pre-amp outputs
  • Close to perfect response of +/- .03 db from 2 to 20,000Hz
  • Utilizes proprietary audio transformers for a 1.3 dB gain
  • Split pin RCA connector with pure Oxygen Free Copper wire
Bestseller No. 7
2 Packs Ground Loop Noise Isolator for Car Audio/Home Stereo System, Ground Loop Isolator with 3.5mm Audio Cable
  • Package Contents: 2PCS Ground Loop Noise Isolator with 3.5mm audio cable in one set, enough to meet your needs and we also provide the user manual, which can help you easily use them
  • Eliminating the Buzzing Noise: The audio isolation transformer can help filtering out buzzing, hiss and interference noise and achieve clear music/audio in car audio/home stereo systems
  • Easy to Use: Please plug the ground loop noise isolator directly into the speakers AUX port, and plug another side into the audio source. Then you can enjoy the good quality sound with no other setup needed.
  • Portable: The size of ground loop noise isolator is 2.36 x 0.75 x 0.75 inch (0.05lb), compact and lightweight, easy to carry and store. You can use them when you want to achieve clean, clear and uncompromised music/audio
  • Application: The 3.5mm audio jacks is compatible for smartphones, tablets, laptop, mp3 player, radio or other speakers. If you have any question about the ground loop noise isolator, please feel free to contact us
Bestseller No. 8
Ground Loop Isolator for Car Audio/Home Stereo System, 2 PCS Ground Loop Noise Isolator Filter with 3.5mm Audio Cable
  • 👍[ Ground Loop Isolator for Car Audio/Home Stereo System ]- The ground loop noise isolator can well work with your home stereo system, car audio, even the Bluetooth receiver, PCs, etc. They can effectively eliminate the groud loop interference that may occur when the audio source is connected to the playback device, bring clean music to you
  • 👍[ Easy to Use ]- The ground loop noise isolator filter is easy to use, it's a middle part. Just plug this ground loop isolator directly into the cars/speakers AUX port, and plug another side to the audio source. The ground loop isolator 3.5mm will instantly remove the buzz/hum/static out of your car audio system/radio/home stereo/speakers
  • 👍[ Wide Application ]- Except for the car audio/home stereo system, the ground loop isolator is also suitable for most device that has a 3.5mm jack, eg, smartphones, tablets, mp3 player, speakers, headphone, etc. The ground loop noise isolator work with some devices may reduce the volume, please kindly understand this
  • 👍[ Mini-Size & Portable ]- The ground loop isolator 3.5mm is mini-size and lightweight(2.36 * 0.78 * 0.78 IN, 0.081lb), you can take this ground loop noise filter everywhere and apply it. The package includes 2pcs ground loop noise isolator with 3.5mm audio cables, 1 manual
  • 🚩[Note ]- Although the ground loop isolator will work well in most situations, if you find the noise isolator can not well meet your need or have some problems while using this noise filter, please feel free to tell us, we will help you fix the problem ASAP
SaleBestseller No. 9
Compact Mini Hum Eliminator Box - 2 Channel Passive Ground Loop Isolator, Noise Filter, AC Buzz Destroyer, Hum Killer w/ 1/4" TRS Phone, XLR Input/Output, Uses 1:1 Isolation Transformer - Pyle PHE400
  • Removes AC noise: The Pyle hum eliminator removes 60Hz AC hum caused by ground loops that act like Radio antennae (loop antenna). breaks the ground loop safely making it impossible for the signal lines to pick up the AC noise in the first place
  • Passive device: The noise isolator is a passive device which does not require power to operate. Equipped w/ ¼” TRS phone and XLR inputs and outputs on 2 channels. Automatically converts unbalanced to balanced signal without any signal loss
  • Compact design: This noise filter device features a high performance Ultra compact and portable design allowing you to easily bring it anywhere. It has high quality components and rugged construction while maintaining the highest sonic quality
  • 1:1 ISOLATION TRANSFORMERS: The 1:1 isolation transformer is responsible for breaking the ground loop or the loop antenna that prevents buzz for a clear sound. Also responsible for balancing audio lines. Device accepts mono or stereo connections

Buying Guide For The Best Ground Loop Isolator

There are many ways to fix a ground loop, but all of them involve isolating the source. Ground loops can occur anywhere in your home, from your breaker box to the outlet or plug. If you’re unsure if you’ve got a ground loop, test the outlets and plugs in your home. Here are some things to look for.

1. Is It Just One Ground Wire?

The first thing to check is whether you have one copper wire or two wires running back and forth between the circuit breaker box and the outlet/plug. If you have two wires instead of one, then it’s probably a ground loop that needs fixing. You can test this by unplugging all of your appliances, turning off your breaker box, and then plugging everything back in again. Does it work? If so, then you know that there is one wire running back and forth between the circuit breaker box and outlet/plug. You can use a multimeter to check the continuity of your ground wire. If you see bare metal, then you know there’s a ground loop.

2. Is It Just One Ground Loop?

The next thing that you should check is whether or not there are multiple grounds on one circuit breaker box (if your home has more than one). If you have multiple grounds on one circuit breaker box, then it’s time to start looking at some bigger fixes. You can use a multimeter to check the continuity of your ground wire as described above. You can also use a continuity tester to check it for you.

3. Is There Any Other Ground?

The next thing that you should check is whether or not there is any other ground. If you have a single ground, then the problem is likely one of the following:

4. Is There A Ground Loop In The Breaker Box?

The next thing that you should check is whether or not there is a ground loop in the breaker box. If you have multiple grounds on one circuit breaker box, then it’s time to start looking at some bigger fixes. You can use a multimeter to check the continuity of your ground wire as described above. You can also use a continuity tester to check it for you.

5. Is There A Ground Loop In The Plug?

The next thing that you should check is whether or not there is a ground loop in the outlet. If you have multiple grounds on one circuit breaker box, then it’s time to start looking at some bigger fixes. You can use a multimeter to check the continuity of your ground wire as described above. You can also use a continuity tester to check it for you.

6. Is There An Unbalanced Load?

Next, we’ll look at unbalanced loads (like large appliances). If an appliance like an air conditioner or heat pump is drawing more current than it should be, then it will create a ground loop. The easiest way to fix this is by unplugging that appliance and plugging it back in again. If the problem persists, then you may need a new breaker box or outlet/plug combo.

Bottom Line

The best ground loop isolator is the WireMate. This is a heavy-duty, industrial-grade ground loop breaker. It’s weatherproof, so you can use it outdoors. It’s also designed to work when your power is off, so there’s no worry about installing it wrong. The design is also highly efficient, meaning it only uses 15 watts. This means it’s much more effective at keeping a ground loop away than cheaper models. The WireMate is designed to work with 220 and 110 circuits. That’s important because it prevents this ground loop breaker from being used in other applications. You can ground up to four different wires with the WireMate. It’s a versatile ground loop breaker that can be used for a variety of applications. It’s available on Amazon for under $40.

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