The 7 Best Current Loop isolators (2023 reviews)

We consider a current loop isolator to be a worthy investment in the long run. We are here to help you choose the right one for your purposes from all the best available products in market today.

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Our Top Picks:

Best overall: Buy: Besign Current Loop Isolator READ REVIEW

Best For Car Stereo: Buy: Jabinco Current Loop Isolator READ REVIEW

Best For alternator: Buy: Smof Current Loop Isolator READ REVIEW

Best For home: Buy: Installgear Current Loop Isolator READ REVIEW

Best For mic Input: Buy: Kript Current Loop Isolator READ REVIEW

Best For speaker: Buy: Conext link Current Loop Isolator READ REVIEW

Best For transformer: Buy: Zdmyy Current Loop Isolator READ REVIEW

Best overall: Besign Current Loop Isolator

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The besign current loop isolator's high-end materials makes sure that it ages well with use. This fixed pc headphones has buzzing sound. It can actually *make* a connection with the mini stereo port, but it works fine. It is a great way to eliminate cross noise and feedback. This isolator has completely eliminated the ground loop noise. The sound quality remains good with no major loss of quality or clarity.

This works with the rode videomic and videomic pro. This has an isolation transformer inside which usually does the job. The device works well while the computer is running.

• Best product to eliminate noise from an outside source to the car radio
• Eliminates ground noise from bluetooth plug in
• Delivers what they promise

Best For Car Stereo: Jabinco Current Loop Isolator

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The jabinco current loop isolator's superior materials makes sure that it ages well with use. This inexpensive little device completely removes every track of the hum, even at high volumes. It has female 3.5mm standard aux jacks on both sides so you can plug in your own cables. It works well with your home stereo. It's a ground loop isolator, evidently implemented here as a completely passive AC transformer. It takes care of that for amazing sound and clear crisp audio without the backround noise.

This stops the alternator hum from the ground loop caused from power to audio input, Works great, Must have. It takes too much fidelity out with the noise. It's perfect for removing noise from an 07 prius.

• Eliminates noise, and the left side speaker
• Very compact and small enough to be out of the way
• Completely eliminated static noise in classic car

Best For alternator: Smof Current Loop Isolator

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The smof current loop isolator is capable of outshining several other isolator featured in this list in overall features for the price point. These have you or your family ever heard a spook, spectre or ghost in your headphones. This Smof device eliminates the hissing ground loop noise one gets when charging one's phone while playing audio from the phone through the car stereo's AUX input. It will be mono playing through both the right and left side headphones.

Where most other isolators are tucked in enormous metal cans meant to be stuffed behind a dashboard, this one is subtle enough to be seen sitting on your desk. It does the job, takes care of the hum sound, and is nice and compact. The cord is very conveniently very slim to fit into a phone even with a very narrow opening at the headphone jack. The short audio cable is detachable. It works with any device that has a 3.5mm jack including smartphones, pc, laptop, tablets, mp3 player, car audio system, home stereo, or other speakers.

• Works great, no more engine noise
• Worked perfectly and completely got rid of interference noise
• Tied extension cords and different circuits
• Works very nicely in the car

Best For home: Installgear Current Loop Isolator

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Compared with other isolator in this category, the installgear current loop 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. If you plug this into the head unit, you will still pick up noise from the cables and have minimal to no effect on the noise you are trying to filter out. It reduces high pitched whine alternator noise caused by the car's electrical system.

This particular ground loop isolator connects directly up to the device completely fixes that issue and the sound is crystal clear. It will get rid of the noise completely. It fits in the cavity easily. It is used for an automotive application, but on an onkyo surround sound receiver.

• Good for mids and highs, avoid for lows
• Perfect solution to cancel the noise
• Instantly eliminated the low frequency interference noise
• Works pretty well and got rid of most of the noise from engine

Best For mic Input: Kript Current Loop Isolator

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If you often find yourself confused about appropriate and satisfactory isolator, kript current loop isolator is your end point. This Ground Loop Isolator is exactly what's needed to connect a pair of AC powered speakers to an AC powered laptop computer. This product takes up little space measuring in at just 8.5 centimeters with a weight of 25 grams. It is designed to work with any music player that outputs stereo audio over a 3.5mm jack. The Kript HIFI ground loop isolator eliminates all of the noise and preserves the audio quality. This isolator even can drive a headphone. This unit however makes no perceivable difference in sound quality.

• Easily audible on the low end of the frequency spectrum
• Excellent performance on eliminating the ground loop noise and keeping the audio quality intact
• Excellent sound quality, zero whine or hum

Best For speaker: Conext link Current Loop 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 conext link current loop isolator is exactly that - it's a simple isolator that hits all the right notes. The female side allows the existing cable to be used by unplugging the rca cable from the amplifier and plugging into this noise filter and then the noise filter male connectors plug into the amplifier. It can be used as the input because the RCA cables are already run from the head unit to the amplifier using a male to male cable. It reduces the ground loop noise significantly, but it does not completely eliminate the noise.

This isolator removes the buzz completely. It works well can be used mono only 1 in 1 out or both in stereo or 2 in stereo 1 out connector to mono.

• Cylindrical metal case with heat shrink tube
• Filters out dc current in the signal path
• Eliminates humming and buzzing between audio source and amplifier due to ground loop issues

Best For transformer: Zdmyy Current Loop Isolator

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The zdmyy current loop isolator's superior materials makes sure that it ages well with use. The Ground Loop noise isolator is easy to install, plug and play when the wiring is correct, and isolate current 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 no audio playing from the target. It will only remove the noise caused by the ground circuit.

Using the Ground Loop Isolator helps to greatly reduce the noise level so it is only audible at load volume when there is no audio playing from the target. This filter feels really light. It is intended to operate with any device that has a 3.5mm audio jack and is compatible with the majority of automotive audio systems on the market today.

The RCA plugs fit tight, the cable length is a bit short but this is meant to sit in between your line runs. It is for more critical applications you will want to evaluate whether this unit impacts your frequency response.

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