Comments about RadioShack Ground Loop Isolator:

Had significant HUMMING in my 3.5mm connection from Mac audio output to amplifier. Found out about this isolator through web search. Hooked it up and it elilminated the humming COMPLETELY.
Amazingly simple.

Comments about RadioShack Ground Loop Isolator:

My Toyota Prius has an auxiliary audio input to the stereo, but my scanner, XM satellite radio, or iPod powered by the car's cigarette lighter plug created a ground loop that exposed the car's inverter whine. This isolator (really an audio transformer) interrupts the ground loop and delivers great audio. In fact, I could swear that the XM radio sounded better after installation of this isolator.The isolator has male RCA phono plugs on both ends, both input and output, so procure the necessary adapters to connect to your equipment.[...]

Comments about RadioShack Ground Loop Isolator:

I was trying to couple a TV audio output to a Kliptch Promedia 5.1 PC surround system and had tons of hum and tried to isolate the problem. I added the isolator and the problem is solved, no more hum, the amp is whisper quiet now even at max volume, works excellent.

Comments about RadioShack Ground Loop Isolator:

Item "almost" completely eliminated 60 cycle/ripple ground loop condition in my PC to stereo setup. It does reduce power (that's why some IPODS don't work with it) and 50-60hz tones that go to the stereo. It's a filter NOT an isolator and uses power absorption @ ~50-60Hz to eliminate hum. This freq. translates to a 4 string bass guitar. Readjust your stereo Freq. settings and you'll never notice the difference. Eliminating the hum is worth the minor drawbacks. The item on the web is not the same as in-store. The in-store is a barrel and comes with a PC cord adaptor.

Comments about RadioShack Ground Loop Isolator:

I wanted to play music files from my computer through my tuner but i was getting a very loud hum. This product does exactly what it is supposed to do. I'm getting great sound and no hum whatsoever. I'm very happy with the purchase.

Comments about RadioShack Ground Loop Isolator:

This product is amazing. I was being harassed day and night by ground loops. Everywhere I looked, everywhere I went, ground loops were there waiting to ruin my day.

Recently I stopped by THE SHACK, and my life has been loop-free ever since. I can now live without the constant fear and anxiety of being targeted by ground loops, they are kept in perfect isolation. Thank you RadioShack!!!

Comments about RadioShack Ground Loop Isolator:

This is critical if you are using any computer with an audio system. I bought this because I use my laptop when I DJ, and I connect it to my DJ mixer. The humming is due to the AC power supply that keeps the laptop powered. I can't use a laptop battery only for my events, so I bought 2 of these and work so well! The static and hum is gone, definitely worth buying!

Comments about RadioShack Ground Loop Isolator:

This product fixed the annoying hum that came from my surround sound speaker system when watching TV. The only con was that it seems to have made the volume level weaker, but it is really minor. Would recommend that you try this "inexpensive" option before doing anything too crazy!

-C.B.

Comments about RadioShack Ground Loop Isolator:

Eliminates hum from computer audio jack to amplifier. Can now use computer ac line instead of the battery. Minimal to no loss of music frequency range. If audio source is phat - it's phat. If audio source is thin - well, you get the idea. Price is great and the 3.5mm mini plug "y" adapter is real handy. Helps eliminate hum from a microphone mixer into the computer. Quite versatile.

Comments about RadioShack Ground Loop Isolator:

used it in my car and completely got rid of the humming. whenever i pressed the accelerator the humming got worse but completely eliminated the hum without distorting the sound.

Comments about RadioShack Ground Loop Isolator:

My home stereo system includes a computer that induces a very audible hum. Installing the Ground Loop Isolator eliminated the low frequency hum. There is still some buzz from 1kHz to 5kHz that remains, but only when the computer is off. There is only silence when the computer is on. Movie audio quality seems to be fine. I will have to listen to some music to gauge the audio quality accurately; however, I do not use it for music as much as movies. Perhaps the others got damaged or DOA items. To sum it up, this is good for getting rid of low frequency hum, but I am not sure about it getting rid of the high frequency buzz as well. Good product.

Comments about RadioShack Ground Loop Isolator:

This product completely removed the audio hum and electronic noise from hard drive access.

Comments about RadioShack Ground Loop Isolator:

Our church runs an auxiliary out from the mixer to the computer for recording the sermons. For some reason, our new setup created a lot of hum in the recording. Did some online research, narrowed the problem down to ground loop, installed the isolator from Radio Shack, and the hum was greatly reduced (not completely gone). For all intents and purposes, it's not audible anymore (unless you crank the volume on the recording during the silences).

Comments about RadioShack Ground Loop Isolator:

This device is great for when you live in a apartment with poor ground loop problems and
you are running a long 40 foot cord from your
home computer to your home stereo or home theater
system. Still you need more audio adapters to
connect to your stereo system. Also this is great for connecting a real good set of computer speakers with subwoofer to a boombox with CD player. I would recommend this for home users of laptops with a jukebox running a very long cord
from your computer to the stereo system.

Comments about RadioShack Ground Loop Isolator:

Ground Loop Isolator works great. The loud humming sound is gone. Audio sounds fine now.

Comments about RadioShack Ground Loop Isolator:

It works, great value.

Comments about RadioShack Ground Loop Isolator:

During a Sunday, 11th hour complete rework of an aircraft audio distribution system, I discovered a ground loop created by our two 60Hz and one 400Hz power systems. The aircraft HAD to be flight ready Monday morning. Running to the local Radio Shack, I purchased one of these and installed it. It now works perfectly with no power background hum or noise. And yes, it does kill 400Hz. Radio Shack once again saved my bacon. Thank you.

Comments about RadioShack Ground Loop Isolator:

I have XM radio via the internet. However, no matter which laptop I used to connect to my AV Receiver I would receive a terrible buzzing sound through my speakers. I purchased this product and it did the trick!!! I do not receive any buzzing through my speakers anymore. I am now enjoying my XM radio internet connection through my receiver with no audio issues.

Comments about RadioShack Ground Loop Isolator:

Was installing an auxiliary input module in a Mazda to be able to play an iPod through the factory radio. Hooked it up, turned it on, and all I heard was intolerable buzzing and static. Knew it was a grounding issue. Picked one of these up at my local RS, hooked it up in 30 seconds in the parking lot and Voila! crystal clear. Can't beat this little device, especially for the price. This is why RS is awesome. Could I have ran over to my local big box and found this? I don't think so.

Comments about RadioShack Ground Loop Isolator:

If you ever have buzzing in your home stereo speakers from an external device, like a cable box or cd player this is the product to get!

Comments about RadioShack Ground Loop Isolator:

It specifically says does not affect frequency response but it definitely killed the treble and high frequency . Unit was installed between my Sirius Sportster and the aux input on my Toyota.

Comments about RadioShack Ground Loop Isolator:

We are using an HTPC to run the bedroom HDTV and decided to run a long HDMI and audio cable to another LCD in workout room to share the HTPC. As soon as hooked up audio cable got that dreaded hum/buzz. Ran to the shack got this isolator and wah-lah, instant fix. Clear sound again, no buzz.

Comments about RadioShack Ground Loop Isolator:

I bought the unit because I had background hum from my PC to an amplifier. A DVD to TV to amp input was also connected. It worked fine.

However, I had a direct cable connection to my TV because I use a cable card. I later got a cable modem. And that additional unit caused the hum to return.

After some experimentation, I switched the GLI from the PC in line to the DVD in line and the hum again disappeared.

Comments about RadioShack Ground Loop Isolator:

I pu this between my PC and my stereo amp and the dreaded humming was gone completely! Finally, perfect noise-free MP3 playback.

Comments about RadioShack Ground Loop Isolator:

I connected my new computer to my stereo receiver and heard the dreaded loud humming noise. I went to my local Radio Shack and picked this up and brought it home and the humming is gone. Works exactly as advertised. Great product!

Comments about RadioShack Ground Loop Isolator:

I have a nice kenwood powered subwoofer that, before this, was not living up to expectations. I could never turn it up to even close to full volume or it would sound like it was about to blow. Also had a slight hum whether or not my system was on.

I put this directly before the wiring reached my sub input and it not only eliminated the hum, but it allowed me to crank the sub volume to full and my system to full. COMPLETELY made the difference that was long overdue. -home theater complete-

Comments about RadioShack Ground Loop Isolator:

I connected my pc to a home stereo about 70 feet away. I was hearing mostly hum with a little music. Ran up to the mall, picked this bad boy up, hooked it up, no more hum. Probably does lose some quality, but so far I haven't noticed.

Comments about RadioShack Ground Loop Isolator:

I did not use this in a car, but in a high-end sound system for church services. There was a loud hum from my PC to the sound board and the ground loop isolater from RadioShack took the hum completely out. I expected it to diminish the hum, not take it out completely. Pleasant surprise.

Comments about RadioShack Ground Loop Isolator:

Cleans up noise when connecting your computer to your radio.

Comments about RadioShack Ground Loop Isolator:

I brought a Harmon GPS 810NA with the audio out and wanted to connected it to my Jensen 9311 dvd/radio. When I connected everything I had this annoy whinning sound coming from my radio. Plugged in the Ground Loop Isolator and the whining sound was gone instantly. Saved time and money.

Comments about RadioShack Ground Loop Isolator:

This unit interfaces perfectly with ANY standard and high end Car Audio System, unless, of course, you have a hacked and ham fisted uneducated unconventional install - then you will be in adapter hell - again. Install it correctly the first time! Don't buy Junk!
The noise filtering(Suppression)of this unit is as good if not better than some of the high end units. Good Job R.S.

Comments about RadioShack Ground Loop Isolator:

it worked fine but i had to get two rca couplers to make the right connection at the amp double male ends should have male amd female ends on it

Comments about RadioShack Ground Loop Isolator:

I had installed a computer in my car with an 8" touchscreen to play all of my music(mp3car.com), no need for CD's. I got everything installed and looking good, but I had this humming noise when the car was not running and a wining noise when the car was running. This little thing fix the problem, no more noise. If you are getting noise when you connect you PC to your radio, get one of these! It works!

Comments about RadioShack Ground Loop Isolator:

Had nasty hum when I hooked my PC to my stereo. This little puppy fixed it right up. Even tried putting the stereo and PC on the same outlet before buying this product, that didn't work.

Comments about RadioShack Ground Loop Isolator:

This product is amazing at getting rid of all noise/feedback coming from my laptop into the home theater system. This product still gives (maybe even improves) HIGH QUALITY SOUND! Love it! Just doesnt have enough adapaters, had to buy one extra at only [$], WORTH IT!

Comments about RadioShack Ground Loop Isolator:

Had computer noise/hum from my laptop to my Amp+Mixer All in one, this eliminated the hum or computer noise. Purchase 3 more for my other computer systems.

Comments about RadioShack Ground Loop Isolator:

I have been connecting a laptop to an audio receiver for use in a home theater when streaming video. The AC adapter would send an annoying hum and screech when attached to the laptop. This little gem worked like a charm. The 1/8 inch adapter was a nice freebie too. Male to male connections, though, so make sure you use it in the right application.

Comments about RadioShack Ground Loop Isolator:

Had a low frequency hum when running audio from my PC to my stereo receiver. This ground loop isolator did the trick for me -- no more annoying humming!

Comments about RadioShack Ground Loop Isolator:

Connect this between your noisy computer and mixer/powered speakers and enjoy the silence.

Comments about RadioShack Ground Loop Isolator:

I have a guitar effect box that one end was connected to an instrument amplifier, the other end to a laptop USB port for recording audio on the computer. When I plug in the laptop power supply, it generates a strong humming noise in the instrument amplifier. As soon as I removed the power supply, all was quiet. Since I can't run it on battery whenever I'm doing recording, I searched around the internet and found this ground isolator device. I bought it, connect it between the instrument amp and the effects box, the noise was immediately cut off. Amazing. Works as advertised. (Has not confirmed if there's loss in audio fidelity, though).

Comments about RadioShack Ground Loop Isolator:

Was getting hum via the sound output when I hooked a DLP projector up to the laptop. I put this device in between the laptop and the amp, and it worked like a charm.

Comments about RadioShack Ground Loop Isolator:

THIS PRODUCT IS GREAT WHEN YOU CONNECT YOUR PC AUDIO OUTPUT TO YOUR STEREO EQUITMENT I WAS GETTING A HUM WITHOUT THIS PRODUCT. WHEN I MADE CONNECTION NO MORE HUM

Comments about RadioShack Ground Loop Isolator:

Using one of these Ground Loop Isolators with a Mini Recorder Control (43-1237), a 1/8" phono coupler, and a 1/8" phono (mono) to dual RCA adapter, I am able to easily record and hear phone calls through my computer. Bravo for Radio Shack adapters!

I docked the product 1 star because it only comes with 1 RCA-to-phono adapter. In order to use the Ground Loop Isolator between my computer and a Mini Recorder Control, I needed 2 additional adapters. Fortunately, they all work brilliantly.

Comments about RadioShack Ground Loop Isolator:

I have a Part 15 AM transmitter on my roof. In the audio chain of my station I have three grounding points, two computer sound cards, and 50 feet of audio cable. With such a setup, I guess you are destined to have a hum problem. This product totally eliminated it. Just amazing. My audio is now as clean as the 5,000 watt local.

Comments about RadioShack Ground Loop Isolator:

I have my PC & stereo about 60 feet away from each other. As a result, I was getting this irritating hum. I connected this device between the PC & stereo. The hum is completely gone with NO LOSS of music quality.

Comments about RadioShack Ground Loop Isolator:

Reasonably priced, easy to install and it reduced the hum from audio output of my LCD TV to input to preamp. Need a female to female coupler to install.

Comments about RadioShack Ground Loop Isolator:

Had a constant low volume static/hum out of my DJ system using a mixer and laptop computer. Unplugged the laptop to operate on battery power and the static was gone. Installed the Ground-Loop Isolator between the mixer and the powered speakers and the static is completely gone with the laptop plugged in!

Comments about RadioShack Ground Loop Isolator:

I took the thing back, and bought short shielded
RCA's (Radio Shack's Gold Series) to replace my old
ones, and that completely eliminated the noise --
even though i'm almost completely sure the problem
was ground loop. (unplugged off one of the components,
and noise was gone)

Bottom line -- go for more shielding if you can.
It's more expensive, but worth it.

Comments about RadioShack Ground Loop Isolator:

Have a 2004 Pacifica with a factory DVD/CD Player. It has 3 RCA female jacks. Just connect it to the device ( MP3 Player, etc.......) The audio is clean and clear. Best [$] you will ever spend.

Comments about RadioShack Ground Loop Isolator:

This device is used between the laptop I use for shows and the mixer. It is not necessary at some venues I service however it's better safe than sorry. This device will also serve some protection aginst a power spike in the audio lines or shorts from component to component.

If you still have hum or hiss after installing this or you loose any aspects of your music or audio program the fault is typically somewhere else in your system. Check other connections for proper polairity and that they are clean and make good contact. It can also be possiable that you need more than one down your audio path.

Comments about RadioShack Ground Loop Isolator:

Does not eliminate, but extremely reduces humming noise; well worth the cost.

Comments about RadioShack Ground Loop Isolator:

I used this isolator between the cable tv box and the home theater. completly eliminated the hum in the speakers.

Comments about RadioShack Ground Loop Isolator:

I purchased this to resolve a groundloop problem I was having with a device I use on my computer for recording my own guitar music. I shopped around and found this was the cheapest audio isolation transformer I could buy, so I wasn't expecting much. Well, I am happy to say this thing works beautifully. My noise issue is gone and doesn't degrade the audio even when playing full range, commercially produced songs through it.

Comments about RadioShack Ground Loop Isolator:

I've used several of these devices at Saint Leo University to eliminate hum in many audio application with great success.

Comments about RadioShack Ground Loop Isolator:

In regards to the previous comment about losing the vocals & bass frequencies: use a continuity tester to double-check the wiring & adapters. That situation will occur when your left & right signals are summed to mono, and one of the left/right signals is also out of polarity with regard to the other (signal & ground are reversed on one of the two channels). Depending on their quality, an isolation transformer (what this device is) may slightly reduce the very high or very low frequencies, but won't eliminate bass frequencies, cut vocals or change the stereo "image". Look for a reversed cable or incorrectly wired adapter somewhere. Best of luck to you.

Comments about RadioShack Ground Loop Isolator:

I have a 2007 lexus is 250. I had a stereo store install my sirius sportster through the ipod port. I was getting a high pitch humming noise that no one could figure out (it got louder as i accelerated). Finally, someone at radio shack suggested the ground loop isolator. They hooked it up directly from the sirius to the ipod jack, and it completely eliminated the noise/feedback with no loss of sound quality. great product!

Comments about RadioShack Ground Loop Isolator:

I used the device to get rid of the electrical interference caused when I connected my MP3 player (hooked up to my radio via a wired FM transmitter) to the cigarette lighter. It does its job nicely but as mentioned before, the sound quality is affected, too. Fortunately, I could compensate for it somewhat by using the built-in MP3 player equalizer.

Comments about RadioShack Ground Loop Isolator:

Completely eliminated the slight, but very annoying, hum on my home stereo when playing music from my computer. No loss of sound quality that I can tell.

Comments about RadioShack Ground Loop Isolator:

Completely eliminated all the noise in the system... but also eliminated most of the vocals and the low pass frequencies (bass).

Comments about RadioShack Ground Loop Isolator:

Cleaned the winding buzz heard on my Sirius Sportster when I accelerated. Simple to install. I fyou have noise when you press the gas on your MP3 or Satelite radio (or any 3.5mm audio connection) this cleans it right up.

Comments about RadioShack Ground Loop Isolator:

If you are tired of searching for that bad ground causing that annoying wining noise, the Ground Loop Isolator can kill all that. Peace.

Comments about RadioShack Ground Loop Isolator:

This worked perfectly to remove the hum when connecting my PC to an external amplifier for music. However, both ends of the wires are male! Had to buy a female to female coupler so I could use it!

Comments about RadioShack Ground Loop Isolator:

This ground loop isolator will eliminate your ground loops (great for cars) at the expense of your audio quality. Granted, some people may not notice but I do - it puts out a flat, tinny sound which, when compared to the whine it eliminates, isn't worth the cost.

Comments about RadioShack Ground Loop Isolator:

WORKS GREAT WITH HOME THEATER CONNECTION WITH MY COMPUTER. SOUNDS GREAT AND WILL PROTECT YOUR SPEAKERS FROM DISTORTION.

Comments about RadioShack Ground Loop Isolator:

I use this on my home theater system which has a grounded receiver and a grounded tube amp on the same circuit. Even though I use a power conditioner which eliminates a lot of the hum, it's still very noticeable. Unfortunately, this isolator product cuts the signal level significantly so that I must turn the tube amp really high to match the receiver's multi-channel output. This causes the tube amp to produce a noticeable hum which kind defeats the purpose of the isolator. It also creates a dangerous situation if I forget to turn the volume level down before switching to another input on the tube amp. Beware of the other reviews which say it doesn't degrade performance - it most certainly does!

Comments about RadioShack Ground Loop Isolator:

The white channel was dead out of the box. Test it before you leave the store.

Comments about RadioShack Ground Loop Isolator:

I used this device between my Garmin Nuvi 350 portable GPS navigator and the AUX input plug of my 2005 Honda Gold Wing. Completed eliminated all of the loud ground loop hum and noise. Worked perfectly!

Comments about RadioShack Ground Loop Isolator:

If your getting a hum between two audio components this will take care of the hum.

Comments about RadioShack Ground Loop Isolator:

I not only use this cable to elimanate noise from my computer to the sound system's speakers, but I also use it to elimanate the hum and buzz while recording sessions onto my computer. Works Great!

Comments about RadioShack Ground Loop Isolator:

Used between Rotel integrated amplifier and Sunfire powered subwoofer. Amazing result - hum is only audible when standing right next to the subwoofer.

Comments about RadioShack Ground Loop Isolator:

Used between my computer and intergrated amplifier system. Completely eliminated all hum and did not sacrifice sound quality...worked perfectly.

Comments about RadioShack Ground Loop Isolator:

Does not work well with a MP3 player hook up. Eliminated the vocals in the music.

Comments about RadioShack Ground Loop Isolator:

used for intercom between main console and the 250 watt pa amp. stopped the hum totally.troubleshot the system for hours before this was installed.good job.