The 12 Best Amp isolators (2023 reviews)

The besign amp isolator might be a relatively new release, but it's still nothing short of impressive in this year. This isolator has completely eliminated the ground loop noise. It gets rid of virtually all of the noise even when it is not paired to a device. It has very little sound output and also can be very noisy. The receiver has a very loud high pitch whine when it is not paired to a device. It removes static noise on bass amp aux in. It is great way to eliminate cross noise and feedback.

Keeping it short, this device is intended to remove line noise from audio devices and allow for a cleaner end output. It is perfect for car audio.

Why We Like This:

Works well to eliminate hiss in car radio
Easy setup and no more electrical noise thru the radio
Compact design, removes engine whine from aux
Completely eliminates all buzzing sounds while playing music through your aux cord

Best For Power supply: Smof Amp Isolator

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We would, of course, be remiss if we didn't mention smof amp isolator for daily purpose. This is literally the best thing to get if you use aux for your car and your phone. It's not a notch filter, which would be ideal, but is a well designed low reject filter. It also works using a splitter and using the device on one leg works as well. This is a great product with some unadvertised features.

This device completely eliminates the engine noise and whine. The cord is very conveniently.

Why We Like This:

Tied extension cords and different circuits
Worked perfectly and completely got rid of interference noise
Works very nicely in the car
More buzzing from engine noise or charging

Best For Sirius Satelittle: ZIOCOM Amp Isolator

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Next on the list, we've got yet another isolator that manages to win our hearts. It's the ziocom amp isolator and it's widely considered as one of the best convenient isolator you can buy. This ground loop isolator does a good job of removing the noise. It works with any portable device that has 3.5mm audio jacks, for your car audio system/home stereo, when grounding issues persist. It is designed to eliminate noise in audio systems when there is a grounding issue from shared power sources. This device COMPLETELY eliminates it (dead silent, full volume, 100% gone) and the sound quality is exactly the same.

This is a MUST HAVE for any headset jack application, period. It is a small, contained box with a separate cable that plugs in to either end. The small size is much more convenient than the other models with long cords that get in the way. You will enjoy good quality sound when using it with this ground loop noise isolator.

Why We Like This:

Works well with ik multimedia uno synth
Solution to hum from audio mixer
Good investment for long term

Best For removing Noise: Jabinco Amp Isolator

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We know from years of feedback from readers, customers and amazon sellers, what most people want in a convenient and appropriate isolator. The jabinco amp isolator is exactly that - it's a simple isolator that hits all the right notes. This little gadget is a quick and affordable fix. It's a ground loop isolator, evidently implemented here as a completely passive AC transformer. It is actually audio being ported into from a mixer with various synth engines connected. It works well with your home stereo. You will enjoy good quality sound when you use it with a ground loop noise isolator.

The Ground Loop Isolator takes this humming noise away completely. These are perfect as you don't have to do any wiring for the setups that already use 3.5mm headphone plugs. It is great to get rid of some feedback noise.

Why We Like This:

Eliminates noise, and the left side speaker
Fixes nintendo switch buzzing in headphones when docked
Excellent results at a very economical cost
Very compact and small enough to be out of the way

Best For transformer: PAC Amp Isolator

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The pac amp isolator is capable of outshining several other isolator featured in this list in overall features for the price point. This item will remove the alternator whine in your car stereo system. It works perfectly to stop the charger noise from being transmitted to the amplifier and speakers. It does plug in behind the deck on pre amp out to amps. It reduces the bass but it's no problem. This definitely lowers the tones in the music, also there is some sort of static that coompanies it from time to time real randomly.

This device is affordable and silences the annoying buzz immediately.

Why We Like This:

Completely eliminates the static/parasitic noise when the engine is running
Reduced static buzzing noise on rca input
Low profile to fit behind in dash radio
Inexpensive way to filter out the unshielded noise

Best For RCA lines: Installgear Amp Isolator

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Compared with other isolator in this category, the installgear amp isolator has a convenient design. This ground loop isolator is made up of a pair of transformers that allow the signal to pass while keeping the signals galvanically isolated. It works well to remove noice and totally clears it up. The noise is like a feedback from the tv to the speakers and this noise filter completely removes it. It fits in the cavity easily. This helps take that low humming or hissing noise out.

This particular ground loop isolator connects directly up to the device completely fixes that issue and the sound is crystal clear. You can still hear noise if you listen closely but the isolator definitely reduces it to the point where it’s not annoying.

Why We Like This:

Great product to eliminate line noise hum caused by ground faults
Effective at preventing audio ground loops
Instantly eliminated the low frequency interference noise

Best With equalizers: Ekylin Amp Isolator

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Ekylin offers a variety of isolator for personal choice and yet maintaining quality in all the variants. This filter will filter up to 24 gauge wire. It connects between the car’s accessory power (which is OFF when radios should be off) and the power source cable of the head unit. It is made by metal, reliable and strong. It is used to stop engine noise on your non factory radio. This filter removes 99 % of the noise from the incoming power from the rzr battery. The red wire connects to the battery 12v+, and the yellow wire connects to the power cable of the stereo where the electricity is going.

These are 35v rated caps and also it is plugged in to ac power. It is compatible with car stereo receivers, equalizers, amplifiers, speakers, etc.

Why We Like This:

Reduce 75% of the whining noise from alternator
Good investment for long term

Best For powered speakers: Recoil Amp Isolator

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The recoil amp isolator is capable of outshining several other isolator featured in this list in overall features for the price point. This product is great for powered speakers. They are ground wire, connect to negative on amp and chassis of vehicle. It eliminates all of the engine noise. This device provides isolation for one of the computers, without attenuating the signal too much. It doesn’t eliminate 100%, but the interference can be heard when playing music. It is great for powered speakers.

Why We Like This:

Sounds great and was crazy easy to install
Good filter for ground loop noise
Eliminates ground loop noise between the audio source and radio
Utilizes proprietary audio transformers for a 1.3 db gain

Best For CB Radio: Install bay Amp Isolator

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Not everyone likes to purchase isolator for their regular usage, but the install bay amp isolator would be an anomoly. This product helps smooth the power to the radio and can even power the radio for a second or two after turning off the key. It will remove all the interference and improve quality of sound.

Why We Like This:

Only takes a few minutes to install in the power line
Works very well on the engine noise
Gets rid of engine noise in auto, ie cb audio amps

Best For filtering unwanted Ground Noise: ZGUKJ Amp Isolator

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Not everyone likes to purchase isolator for their regular usage, but the zgukj amp isolator would be an anomoly. This RCA ground loop isolator is excellent in reducing the high. It does not reduce sound quality. It keeps the buzz out of the system when you have your power cable running too close to the audio cables. The good isolator not only cancels the noise, but also keeps the music without distortion.

This is a pre-amp/line level isolator. It eliminates noise or hum caused by a ground loop. You can use it with the bluetooth receiver or bluetooth hands-free car kit. It’s easy to use and install and install.

Why We Like This:

Reduced the crackling and humming associated with ac power / devices nearby
Removes static from rca connection audio
Passive design, no electric hook up needed
Nice and compact and easy to install good value for the money

Best For automotive uses: Zdmyy Amp Isolator

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Compared with other isolator in this category, the zdmyy amp isolator has a convenient design. When you install an amplifier and new speakers in your car, the filter helps to significantly reduce engine whine in your car audio system without annoying and unwanted noise. It is designed to help with a humming noise and or engine noise for radio's with no to connect to an amplifier that requires. It is crafted of high-quality materials that are both trustworthy and robust, and it is meant to endure for a very long time.

The ground loop noise isolator is easy to install, plug and play when the wiring is correct, and isolate current noise when it is not playing. It solves the sizzle sound when it is not playing. It's easy to install and work perfect. It is for more critical applications you will want to evaluate whether this unit impacts your frequency response.

Why We Like This:

Pure music, and total silence between songs
Uses proper transformer coupling to achieve isolation
Works to get rid of interference
Save yourself stress, time and money

Best For Sturdiness: Isoacoustics Amp Isolator

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We know from years of feedback from readers, customers and amazon sellers, what most people want in a convenient and appropriate isolator. The isoacoustics amp isolator is exactly that - it's a simple isolator that hits all the right notes. It takes the bass out of the floor beneath the stands and isn't going to be moved often or at all so they will last a very long time. It provides superior isolation performance and additionally reduces internal reflections to eliminate smear. The pucks are very well built and durable. It is an improved stereo image of natural spatial sound.

These are positioned under audio or video equipment and aren't going to be moved often or at all so they will last a very long time. They completely eliminated the vibrations that were being transferred to the chassis through the stock feet. It is recommended to use 3 or 4 units under each speaker. It is a relatively inexpensive yet noticeable improvement in sound quality.

Why We Like This: