About this item
This ground loop isolator integrates into the OEM system of your vehicle to eliminate ground loops for quality audio reproduction.
Integrates into most vehicles' OEM systems
Audio transformers isolate RCA shields, creating an RCA output with floating grounds for clear audio.
1/3dB gain
Eliminates ground loops caused by source units installed in your vehicle's factory dash for quality sound.
Copper material
For long-lasting use.
What's Included
Metra Ground Loop Isolator
General
Product NameGround Loop IsolatorBrandMetraModel NumberTC-GLIColorBlackColor CategoryMulti
Warranty
Manufacturer's Warranty - Parts1 yearManufacturer's Warranty - Labor1 year
Other
Product Width11 inchesProduct Height5 inchesProduct Weight0.16 poundsProduct Length14 inchesUPC086429262281
Search
Q: QuestionHeard these take away from your sound(2 answers)
A: AnswerActually a ground loop audio isolator enhances sound quality by eliminating AC hum. Ground loop problems are caused by small voltage differences that normally exist between the ‘grounds’ at the send and receive ends of a audio signal cable. In an unbalanced interface (consumer audio), this ground voltage difference directly adds to the signal. This generally produces hum or buzz in audio. In a balanced interface (professional audio), the ground voltage difference may reveal inadequate common-mode rejection at the input stage of the equipment (Bad Ground ) or other design defects. A ground isolator in the signal path is the fundamentally correct way to eliminate system ground loop problems. A transformer does this by magnetically coupling the signal across an electrically insulated barrier wh9ich blocks electrical noise and creates a clean audio signal between pre-amp and amplifier and is connected as depicted in photo.Answered by Ezdollarz
Q: QuestionWhy does this devise kill 70% of my bass?(1 answer)
A: AnswerI think the transformer does not provide a flat frequency response down to the 20-50 hz or lower range. You could try to flatten the curve with bass boost. It may be that a higher quality/price isolator would provide a flatter response on the bass end, but i haven't tested this hypothesis yet.Answered by hombreretirado
- A: AnswerNo power connection. Connect RCAs to unit and unit to amp and than connect connection from unit to ground and done.
Answered by Locosiete
Q: QuestionWhy wouldn’t this work on a home audio system?(3 answers)
A: AnswerI’m not sure why. I just hooked it up between two of my audio components with the problematic component placed after the ground loop isolator and it cleared up the buzzing sound.Answered by Gump52
- A: AnswerShort answer: No. The ground loop isolator is designed to connect line level outputs to inputs...for example from a CD player line level output to an amplifier line level input, both of which would have plug-in (115 volt AC) power supplies. The amplifier output to speakers would not benefit from an isolator unless the speaker is powered and plugged into a 115 V outlet. So if the speakers are passive and powered by your 5 channel amp, the isolator is not needed. Moreover, if you are feeding signal into the amplifier from a battery powered MP3 player (or similar device) the isolator is not needed. It is only helpful when connecting two devices that each have plug-in 115 V AC power supplies. Finally you may find that the isolator attenuates the bass end of the audio signal, so if you are not pestered by a 60 hz hum, don't use the isolator.
Answered by hombreretirado
Q: QuestionDo you need to hook up the ground wires? Or doesn’t the ground wires make a difference?(3 answers)
A: AnswerDid not hookup my ground wire and it still worked just fine no more winding sound.Answered by 1989
Q: QuestionCan I use this with my turntable external phono preamp going to my receiver?(1 answer)
A: AnswerI don't see why not. Basically it lets you ground a system that not being grounded already.Answered by GregS
Q: QuestionIs it reversable?(1 answer)
A: AnswerNo, there's an output in an input and has to go correctly or else it won't do this job!Answered by GregS
Review Summary
Rating 4.4 out of 5 stars with 206 reviews
4.4Rating by feature
- 4.4Value
Rating 4.4 out of 5 stars
- 4.3Quality
Rating 4.3 out of 5 stars
- 4.6Ease of Use
Rating 4.6 out of 5 stars
The vast majority of our reviews come from verified purchases. Reviews from customers may include My Best Buy members, employees, and Tech Insider Network members (as tagged). Select reviewers may receive discounted products, promotional considerations or entries into drawings for honest, helpful reviews.
Metra - Ground Loop Isolator - Black
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