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Metra - Ground Loop Isolator - Black-Front_Standard

Metra - Ground Loop Isolator - Black

Model: TCGLISKU: 9855136

Customer rating

Rating 4.4 out of 5 stars with 96 reviews

91%
would recommend to a friend

Pros

Cons

Customer ratings & reviews

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Page 1, showing1-20 of 96 Reviews
  • Rating: 5 out of 5 stars

    Saves a lot of diagnosing time

    Posted
    vinnycr2

    Installed a Pioneer DEH-80PRS and a Boss CX600 amp. I was getting the dreaded speaker noise. It was a constant whine. Did not get louder with turning up the volume on the head unit or when the engine revved higher. Turning the gain higher on the amp did make the whine get higher. After reading reviews about this situation and how some people tried grounding the amp and head unit in more than a few different places and result was the same I decided to try a ground loop isolator. Don't care if it's considered a band aid fix until the source of the problem is found. This worked perfectly. I went to best buy tonight. Went home and pulled the rear seat down. Disconnected the rca's from the amp, connected them to the GLI and the rca's from the GLI back to the amp. Started the car and the noise was completely eliminated. What a relief. This was driving me ( Expletive to the max ) nuts. Ran the power to the amp separate from the rca's and had a good ground. I will buy another when I run new speaker wire to hook up my rear speakers to the amp. Right now they are running off of the head unit.

    I would recommend this to a friend

  • Rating: 5 out of 5 stars

    Quick solution to a bad problem.

    Posted
    WolfB
    • My Best Buy® Elite MemberElite Member

    Didn't use this for car audio- needed it for a pro-audio PA job using an in-house amplifier (in a conference center) with a bad ground. We couldn't connect anything to the in-house system without a very loud 60Hz buzz, and they only use wireless mics because of it. Had to hook up a computer for presentation audio, and taping a mic to the computer's speaker wasn't a good solution. There was a Best Buy just down the street- so picked one of these up (I remembered them from a previous car audio install several years ago). It did the trick- no buzz at all and audio sounds great now. It saved the presentation. The only "negative" is they don't keep them out in the retail area- you need to get them from the car audio installer bay if you are trying to pick one up in-store. It took me a while to get someone who knew what I was talking about. I know they are handy for home theaters with multiple amps on different circuits as-well.

    I would recommend this to a friend

  • Rating: 5 out of 5 stars

    Serves its Purpose.

    Posted
    cwhite51
    • Verified PurchaserVerified Purchase

    I purchased two of these filters (one for front, one for rear) after getting an annoying squeal that fluctuated with acceleration input through my Kenwood receiver. I noticed this was primarily coming out of my left-rear speaker. After installing these filters, the squeal has been reduced to barely noticeable levels (albeit not entirely eliminated). Installation was a breeze, as I simply unplugged my RCA cables from the factory amp into the radio and plugged the filter to run in series between the radio and the cables (it is even simpler than it sounds). For my installation, I didn't need to hook up the brown ground wires, it just worsened things if they were connected. Overall, good product and I recommend them if you are experiencing similar issues.

    I would recommend this to a friend

  • Rating: 5 out of 5 stars

    Works great between computer and stereo receiver

    Posted
    Stratman
    • Verified PurchaserVerified Purchase

    I recently replaced my desktop computer, but when I connected my stereo receiver back up to the computer's audio output it produced feedback in the form of an annoying buzz and hum. I assumed I needed to replace the speaker cable with a more insulated cable, but then I read a suggestion in an online forum to try a ground loop isolator as a cheaper alternative. It was delivered quickly and I hooked it up in about two minutes. The feedback has been completely eliminated and I don't notice any reduction in the sound quality. I'm not sure if it would work in all cases, but it was a cheap, easy solution to my problem since the computer appears to be the source of the feedback.

    I would recommend this to a friend

  • Rating: 5 out of 5 stars

    Fixed feedback buzz in PC to Stereo Connection

    Posted
    CarGuy1969
    • Verified PurchaserVerified Purchase
    • My Best Buy® Elite Plus MemberElite Plus Member

    Great little device. before tearing your computer down to see where it's not grounded properly (because it probably is) do s simple check. Are your Stereo and your PC on the same power circuit? If yes you might get that annoying 50Hz to 60Hz buzz from your speakers. This fixes the issue because it was designed to do so. It isolates and traps the ground loop feedback and - magically - no more buzz. It's a 2 minute fix that the stereo folks have know about for decades (because it's an analog issue not a digital one). If you have it though the audio inputs it's easy. They make ones for 1/8in plugs as well but this one fit my need perfectly.

    I would recommend this to a friend

  • Rating: 5 out of 5 stars

    Did the job!

    Posted
    AnInternetCitizen
    • Verified PurchaserVerified Purchase
    • My Best Buy® Elite MemberElite Member

    I purchased these to combat a noise issue in my Corvette. When you would turn the aftermarket radio on or off, the factory amplifier would turn on before the radio so you would get a pop from them. Putting these in line removes the physical connection (inside the box is a transformer, so the signal transfer happens over an air gap) that DC power can travel through, and eliminates the turn on/turn off pop. NOTE: THIS WILL NOT WORK IN MOST CASES. My use case is very specific and a misuse of the item, but it gets the job done.

    No, I would not recommend this to a friend

  • Rating: 5 out of 5 stars

    Reduces noise and static to nearly nothing!

    Posted
    AnthonyWood01
    • Verified PurchaserVerified Purchase
    • My Best Buy® Elite Plus MemberElite Plus Member

    I bought two of these in hope to get ride of all the static and noise I had in my aftermarket audio system. One for my front speakers and one for my rear speakers, I wouldn't say it got rid of it entirely. But it definitely got rid of 95% of the noise. The grounds that come with it made it worse for my system, so I ended up just using electrical tape to make sure they didn't ground themselves. All in all, it worked very well.

    I would recommend this to a friend

  • Rating: 3 out of 5 stars

    Did not solve my issue

    Posted
    dealshopper
    • Verified PurchaserVerified Purchase
    • My Best Buy® Elite Plus MemberElite Plus Member

    Tried for a home theater intallation where I am getting hum from long in wall wires carrying analog signals. Did not solve my issue but to be fair it may not be a ground loop problem. The package was previously opened and the case popped open when I disconnected it. Maybe it was a return/defective. These are stored in the install bays and I was told it was the last one. The on line ordering with in store pickup was riddled with problems so I gave up and moved on.

    No, I would not recommend this to a friend

  • Rating: 3 out of 5 stars

    Easy to install

    Posted
    westy
    • Verified PurchaserVerified Purchase

    I bought this isolator to eliminate noise from my auto stereo. It was really easy to install. When i installed it and turned on my stereo, the noise was still there so i thought it was junk. However, i found out later that the noise was from a loose wire so im giving this 3 stars because i dont really know if it works or not to eliminate the stereo noise. In regards to buying it, it was cheap and easy to order and pick up at the local best buy. Overall, it was an easy transaction

    I would recommend this to a friend

  • Rating: 3 out of 5 stars

    Home Stereo Application

    Posted
    Sfcwx101
    • Verified PurchaserVerified Purchase
    • My Best Buy® MemberMember

    I purchased this isolator to eliminate a hum from an ac adapter used in my stereo system. Moving the adapter away from the equipment helped but didn’t eliminate it. The isolator helped but also didn’t eliminate the problem. Your application may have different results. I kept it because it did help.

    I would recommend this to a friend

  • Rating: 5 out of 5 stars

    PROBLEM SOLVED!

    Posted
    Spaztik

    I recently got a used Mazda 3 and quickly realized that I get a buzzing sound when charging my iPod while playing it through the OEM AUX port. Inserting this device between my AUX cable and the AUX in, the buzzing sound is completely gone. I do not notice any degradation in sound quality either. The only downside is that I'm using standard 1/8" AUX cables and this isolator only has RCA jacks on it. So I had to pick up a couple of 1/8" to RCA adapters.

    I would recommend this to a friend

  • Rating: 3 out of 5 stars

    Didn’t work for me

    Posted
    Rayjoseph
    • Verified PurchaserVerified Purchase
    • My Best Buy® MemberMember

    I’ve seen good reviews on this unit online and thought it would help with the engine noise I was getting through my speakers but that wasn’t the case. Took my car to Best Buy just in case It was installed incorrectly but it checked out. I returned the item. The unit itself it made from plastic and felt durable. The cable could be a little longer.

    I would recommend this to a friend

  • Rating: 5 out of 5 stars

    Excellent low cost isolator.

    Posted
    hombreretirado
    • Verified PurchaserVerified Purchase

    I use this to connect the audio output from a laptop computer to the line level input of the audio amplifier of a bookshelf stereo. No more 60 hz hum, and arguably it provides a measure of protection for the output/input stages of both the laptop and the stereo.

    I would recommend this to a friend

  • Rating: 5 out of 5 stars

    Works great!

    Posted
    Carl
    • My Best Buy® MemberMember

    I had an old receiver that was producing static/humming from the headphone line out. I put this between the headphone line out and my headphone's 3.5mm jack and the static/humming disappeared (a few male/female conversion adapters were needed to connect everything).

    I would recommend this to a friend

  • Rating: 5 out of 5 stars

    The best I've found

    Posted
    Chris
    • Verified PurchaserVerified Purchase
    • My Best Buy® Elite MemberElite Member

    This is the best ground loop isolator I have found. Works perfect for vehicles where you just can't trace the noise to the source, especially with trunk mounted batteries. Sound quality hasn't been affected by these in any installs that I've had to use them in and if you just can't find source of noise and need to resort to ground loop isolator this is by far the best product I have found.

    I would recommend this to a friend

  • Rating: 1 out of 5 stars

    useless

    Posted
    mikeg
    • Verified PurchaserVerified Purchase
    • My Best Buy® MemberMember

    I purchased this as a last resort trying to get rid of a ground noise coming from my stereo install. After redoing all the RCA's to the other side of the car, away from all power wires, relocating my EQ, and changing ground locations I purchased this product. It states on the package it will eliminate all engine noises. It did none of that. I actually think it made the noise worse. Waste of a trip.

    No, I would not recommend this to a friend

  • Rating: 5 out of 5 stars

    Works Great!

    Posted
    Sunny
    • Verified PurchaserVerified Purchase
    • My Best Buy® MemberMember

    I used this to try to remove an awful hum on a karaoke receiver. It virtually eliminated the hum. I totally recommend it for this application. Other reviews say that it will remove mid range. I’m not experiencing that. Sounds great.

    I would recommend this to a friend

  • Rating: 5 out of 5 stars

    Great product

    Posted
    JessieJames
    • Verified PurchaserVerified Purchase
    • My Best Buy® Elite MemberElite Member

    Had a buzzing sound when I played a game on my PC. Hooked this up to the out cord to my surround sound sub wolf box and boom buzz sound gone worked like a charm and this is a nic cheap fix get this thing for your car as well if you have issues with your car audio as well

    I would recommend this to a friend

  • Rating: 5 out of 5 stars

    Great Product Easy to Install

    Posted
    zachk
    • Verified PurchaserVerified Purchase
    • My Best Buy® MemberMember

    I was having problems with my new stereo I purchase from Best Buy and Installed myself. I kept getting feedback and distortion from the throttle. I spoke with the car audio specialist and he recommended this product. Plugged right into my rcas and fixed the problem! Thanks

    I would recommend this to a friend

  • Rating: 5 out of 5 stars

    Fixed my buzzing problem!

    Posted
    Ernesto
    • Verified PurchaserVerified Purchase
    • My Best Buy® MemberMember

    I installed a new amp and wires to my door speakers and noticed a buzzing, whining sound after. Checked all my wiring and my last solution to fix was this isolator. Quickly resolved my problem right after installation.

    I would recommend this to a friend