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Ground Loop Noise Isolator for Car Audio/Home Stereo System with 3.5mm Audio Cable (Grey)

4.2 4.2 out of 5 stars 904 ratings

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Purchase options and add-ons

  • 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 : 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.
  • COMPATIBLE MODELS : 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.
  • COMPACT AND PORTABLE : Being so mini and light-weight (2.01*0.59*0.59 IN, 0.99 OZ), this little gadget does not take much space and can be easily taken away.
  • 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.

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Customer reviews

4.2 out of 5 stars
4.2 out of 5
904 global ratings

Customers say

Customers like the performance, value, ease of installation, and static of the wireless adapter. For example, they mention it works amazingly well, is worth the money, and is a simple plug and play solution. Some appreciate the size. That said, opinions are mixed on sound quality.

AI-generated from the text of customer reviews

382 customers mention357 positive25 negative

Customers are satisfied with the performance of the wireless adapter. They say it works perfectly, and is a great bit of tech. Some customers also mention that the device works instantly and perfectly, bypassing static noise perfectly.

"...TL;DR: 3/5 meh, works pretty well aside from when it's insanely distorted." Read more

"...for 6 bucks if it works great if not no big, turns out, this little thing works GREAT! I can't believe it, but yep, works, at least for me." Read more

"...This ground loop does the job very well. It is filtering ALL the noises generated by the car. Now the sound is very clean...." Read more

"Welp, I guess I'm wrong on this one. It does work. Looks like there was something malfunctioning with my old bluetooth receiver...." Read more

68 customers mention57 positive11 negative

Customers like the value of the wireless accessory. They say it's worth the money, small, and a small purchase that is light on the wallet.

"...I believe that it's earned the full 5 stars considering the super low price and the fact that most of the competing products are mediocre and also..." Read more

"...remove the ground loop with the Aux input in my truck, and for a very small cost" Read more

"Summary:Does the job. Good quality. Cheap price. Buy it!The long story:..." Read more

"...The product does exactly what it's supposed to, it's priced well, and purpose built. Can't think of any pros or cons other than what's listed." Read more

45 customers mention42 positive3 negative

Customers find the installation of the wireless adapter to be easy. They say it's a simple plug and play solution that installs in seconds. Some mention that the adapter connects really easy.

"...Pros:- Small, simple, cheap, mostly does what it advertises...." Read more

"...Installation is simple, it's a passive filter, meaning it doesn't require power...." Read more

"...This turned out to be a very simple and inexpensive solution to a problem I was seriously worried about...." Read more

"...Extremely easy to set up (just plug it in to your aux and plug your longer aux into this!), and just works instantly...." Read more

36 customers mention30 positive6 negative

Customers like the static issue with the wireless adapter. They mention that it works excellent to eliminate static and high pitched noise from their studio. They say it eliminates a lot of background static and that it's easy to install. Some customers say that it takes away everything but interference static.

"...Sound coming from my car's speakers are now clean, and the static and buzz is gone.VALUE - Great!..." Read more

"...The static is GONE!!!! Ground loop isolator leaves me with a clear sound at ALL times during any function...." Read more

"...This product works excellent to eliminate static and high pitched noise from my studio monitors that are connected to my computer...." Read more

"...Otherwise it works as advertised, and has eliminated a lot of the background static I dealt with." Read more

35 customers mention33 positive2 negative

Customers like the size of the wireless accessory. They say it is compact, portable, and effective. Some mention that the music sounds sweet, full, neutral, and revealing.

"...Pros:- Small, simple, cheap, mostly does what it advertises...." Read more

"...end" by any means, I can assure you that the music sounds sweet, full, neutral and revealing...." Read more

"...It is nice and small for use in my vehicle and it doesn't get in the way...." Read more

"...Also, it's fairly small--like a sample of lipstick small and comes with one short audio cable...." Read more

33 customers mention25 positive8 negative

Customers like the quality of the wireless accessory. They say it's well-made, sturdy, and purpose-built. Some customers are pleased with the design and quality, saying it lasts well over time.

"...As for me, I find the quality to be more than acceptable (in a car environment) for many types of musics as well as spoken words...." Read more

"...product does exactly what it's supposed to, it's priced well, and purpose built. Can't think of any pros or cons other than what's listed." Read more

"...VALUE - Great! $10 it does the job, feels like great quality, and it's priced well. I would have paid more for the same result!..." Read more

"...Bass increased and went distorded, boomy and uncontrolled, hights not crisp and neutral, music imaging and details just went away...." Read more

510 customers mention347 positive163 negative

Customers are mixed about the sound quality of the wireless accessory. Some mention that it has great sound with no hiss, clear sound at all times, and no more background noise. However, others say that the sound came out wrong, quiet, and has low bass.

"...It worked. No squeal and no discernable degradation of audio quality. Love it." Read more

"...With a newer one, it does get rid of the whine and noise...." Read more

"...I have been experiencing the clearest sound I've EVER heard in my vehicle whether it be wired or Bluetooth and I really owe it to this device for..." Read more

"..."thump" sounds in the bass track, however, the sound gets moderately distorted and sounds like your speakers are old and severely worn out...." Read more

13 customers mention9 positive4 negative

Customers are mixed about the interference of the wireless adapter. Some mention that it eliminates whining interference and background noise when their iPhone is plugged into the adapter, while others say that they hear static and interference. Some customers also mention that the adaptor is very susceptible to EMI interference and that the interference is terrible with a straight connection.

"...has been no base degradation AT ALL, it even may have cleaned up the music signal some. I have been using for about a month and no failures...." Read more

"...Works great, no quality loss and it fixed the interference from the grounding loop. Would rate 5 stars again." Read more

"...wasn't an option on my work truck, and the interference was terrible with a straight connection...." Read more

"...Functions as described, no issues with interference when used with the bluetooth stereo transmitter thru stereo while connected to android phone..." Read more

Just what I needed!
5 Stars
Just what I needed!
So I basically bought this cable because I was using it for my Astro A40 headset being plugged into my mixamp, which was plugged into my Elgato HD60S and as I was recording, there was this very obnoxious buzzing sound. Popped this into the elgato and ran the aux cable back to my mixamp for the headset, then boom. No buzzing at all. Fixed my problem. Recommend this to anyone who had the same problem I had!
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Top reviews from the United States

Reviewed in the United States on May 3, 2016
>>>Update 5/4/16:

Updating my review to 5 stars after fiddling for a couple weeks with this product. While it's not perfect, I believe that it's earned the full 5 stars considering the super low price and the fact that most of the competing products are mediocre and also larger/bulkier.

Here's how to limit the distortion with this device:
- TURN YOUR DEVICE VOLUME DOWN to between 50-75%, and turn your car stereo up higher. Again, I am using this between my iClever Himbox HB01+ bluetooth car adapter and my car's aux input.
- For reference, when I plug straight into my aux input, I always turn up my phone's volume to max and there is zero distortion. The same goes for when using my bluetooth adapter without the ground loop isolator, so the issue is definitely caused by this device.
- It's a bit of a balancing act because turning your stereo up to the max also can cause distortion, so you'll have to find the sweet spot combination of volume levels of your two systems to minimize the distortion. I've got is sounding almost as good as just plugging straight into my aux input, but since my car stereo is turned up almost twice as loud as usual, the static sounds during quiet/no music times is much more noticeable than with the volume on your device turned up almost all the way (and the whole purpose of this device is to minimize this static sounds). While music is playing, however, you can't hear the static and if you're driving the static between songs is unlikely to be noticeable unless your luxury car is dead quiet inside.

So I don't get the horrendously distorted bass anymore, in fact the sound quality is quite good, but it will take some fiddling and you'll probably have to set your volumes differently than you normally do without this device. Go ahead and get one, it's probably the best you can get for the price right now.

>>> Original Review:
I bought this to use with the iClever Himbox HB01+ bluetooth adapter in my 2007 Mazdaspeed 3, which plugs into the cigarette lighter and the aux input. I was getting serious whining/static hiss sounds from my stereo at all time with that bluetooth adapter, and I obviously want to it to sound closer to plugging straight into the aux port. I am leaving my review at 3 stars because it technically does what it's supposed to but it's hard to not knock it lower for the reasons described, below.

Pros:
- Small, simple, cheap, mostly does what it advertises. Makes music playing through add-on bluetooth car systems tolerable in most scenarios with decent sound quality.
- It does significantly remove the static hiss when playing music, and it's mostly gone in the silence between songs. I can still hear some hiss if I turn the volume way up with nothing playing, but it's nothing to write home about.

Cons:
- I have always had my treble turned up a bit on my stereo but I had to turn it back to 0 when using this because it seems to amplify the "tinny" high-frequency bits and makes it a bit more uncomfortable to listen to medium-loud music.
- In a review of a similar product, another reviewer said it made the bass sound like an amplified wet fart, and that's exactly what this adapter does for certain songs that have a few specific types of bass tracks. For this reason, alone, I am contemplating returning it, but there just doesn't seem to be any better alternates out there so I really don't know what to do with this thing.

Explanation:
- For some music types like acoustic/rock/jazz/some tamer EDM music, audiobooks, phone calls, etc. it sounds fine and actually has MORE bass, like this device amplifies it to compensate for any minor volume losses (to the point where I have actually turned the bass down on my stereo).
- For any "thump" sounds in the bass track, however, the sound gets moderately distorted and sounds like your speakers are old and severely worn out. Have you ever heard somebody turn up a subwoofer beyond what it's capable of and it sounds like the speaker diaphragm is smacking into the front of the speaker box with a muffled whump? If you're lucky it will sound like that only in minor doses on bass-heavy songs. This is not so bad to return it, but I NOTICE it every time it happens and it becomes almost impossible to ignore it for the rest of the song.
- For other songs, when you're NOT so lucky, sometimes continuous bass sounds get so distorted that it sounds like somebody poured a bucket of gravel into your speakers and they are gargling the gravel like mouthwash. It was so awful the first time I heard it that I immediately muted my speakers and unplugged it because I thought my speakers were blowing out. This happened during a section of a continuous bass drone, and I verified that it was not my speakers by plugging in to the aux and using my HB01+ bluetooth adapter without the ground loop (both sounded normal).

Final thoughts:
- From perusing Amazon and Google shopping, I don't think you will get much better sound quality than this, unfortunately. Even if you are looking to spend more money, there just are not that many options. It's OK, but I am rather apprehensive about listening to certain types of music with this plugged in, lest I actually damage my speakers from the horrible distortion that this can cause with no warning on certain bass tracks.
- TL;DR: 3/5 meh, works pretty well aside from when it's insanely distorted.
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Reviewed in the United States on February 13, 2024
I have an 09 camry with stock radio no Bluetooth, but aux port. Tried 3 different mp3 players and they all had engine static when using charger port. Googled this issue and someone on YouTube says try a noise loop reduction port like this one. I figured for 6 bucks if it works great if not no big, turns out, this little thing works GREAT! I can't believe it, but yep, works, at least for me.
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Reviewed in the United States on May 28, 2024
It does seem to reduce the volume a small amount, but it does remove the ground loop with the Aux input in my truck, and for a very small cost
Reviewed in the United States on December 15, 2023
I don't usually do reviews but this thing warranted one...
My daughter inherited her grandfather's 2008 Prius when he passed. Though she enjoyed the big band CD he left in it for a while, she wanted to hear her Spotify. I bought her a Bluetooth device that connects to the Aux port of the car's stock stereo. It works, but there's an annoying squeal that the music can't hide. After a long trip I decided to upgrade the unit, but none of the reviews were better than the unit we bought. I saw this, and though some reviewers said it muddied the bass (it's a stock radio that isn't going to sound like a concert hall anyway) and for the price it was worth a try. It worked. No squeal and no discernable degradation of audio quality. Love it.
Reviewed in the United States on May 26, 2024
I have a pair of Logitech Z313 speakers that buzz, which research led me to believe a ground loop isolator would fix. I purchased this product and plugged it between my subwoofer and speakers only for it to not work at all; no sound came from the speakers when it was plugged in. When I contacted customer service through the link Amazon provides through the "Get Product Support" button, they informed me this was not a product they sold.

I'll concede that I'm not very technologically competent, so it didn't occur to me to try plugging the isolator between the subwoofer and PC (though, in my defense, it's not the subwoofer that's buzzing), nor was I even sure this product would work with a 2.1 speaker setup, so that's why I'm giving this product the benefit of the doubt and not leaving a 1-star review; however, the product description doesn't give much to go on, nor does the product come with any instructions. Again, when I contacted customer support I was sent to M-Audio's website, where they informed me this product was sold by MA Audio and they weren't affiliated.

My grievance is less with the product itself and more with the fact that I got no support to help troubleshoot why it wasn't working.
Reviewed in the United States on September 12, 2023
I have an older car which does not have Bluetooth capability in the stereo. So, when using my Garmin Speak GPS unit, I could not send the Garmin's instructions via my iphones Bluetooth to play thru my stereo speakers, instead of playing through the very small speaker on the Garmin Speak GPS.

With this Ground Loop Noise Isolator in my Aux output jack. I use a 3.5mm Aux Audio Cable to connect it to my Garmin Speak, which is plugged into my car's cigarette lighter socket.
Now I can hear my Garmin Speaks vocal instructions via my car stereo aux channel, which is so much better.
Have been using it for 6 years now, without any issues. Very glad to have purchased this.
Reviewed in the United States on February 26, 2024
Tried to lower the amount of buzz in some desk speakers; this actually made the buzz worse.
Reviewed in the United States on February 17, 2024
Ok. This thing definitely gets rid of the statistic. The static and about 60% of the volume and sound quality but since I listen mostly to talk and podcasts it’s fine.