Ground Loop Isolator

This ground loop isolator eliminates engine/alternator noise caused by ground loops in your system. Also great for eliminating line-level noise in home audio and home theater systems.
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Part # 265-012

Product Details

Ground Loop Isolator
This ground loop isolator eliminates engine/alternator noise caused by ground loops in your system. Just install between the head unit and amplifier or equalizer. Also great for eliminating otherwise unsolvable line-level noise in home audio and home theater systems. Features 24 kt. gold plated connectors, one pair of RCA male to one pair of RCA female, to ensure efficient signal transfer.

Ground Loop Isolator
  • BrandParts Express
  • Part Number265-012
  • UPC086429050680
  • Product CategoryNoise Filters
  • Unit of MeasureEA
  • Product Rating
    (48 Reviews)
  • Weight0.3564 lbs.
  • California Prop 65

    Warning: California residents only. Please note per Proposition 65 that this product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.

View similar products to the Ground Loop Isolator
in the Noise Filters product category.


Ground Loop Isolator
Ground Loop Isolator is rated 4.2917 out of 5 by 48.
Rated 5 out of 5 by from Exactly what I hoped forBought this to get rid of the hum in my subwoofer that only happened when I had our Comcast cable lead connected to the cable box. I've had this annoying hum for more than 7 years, and now it's fixed! So Happy! Comcast came out a few years ago trying to fix it for more than an hour (to their credit) so I had given up and thought it was a problem with my AV receiver.
Date published: 2015-03-27
Rated 1 out of 5 by from So much for audio quality....Advertised as "eliminates the noise in the audio line without sacrificing the audio quality". Bought this with some nice "Wired Home" RCA cables to replace some lousy cables I had between my PC audio output and stereo system. The new cables alone got rid of any AC hum I previously had due to better shielding. I tried the isolator just for kicks. The highs seemed quite subdued. Removed it and it was like night and day. This is a good choice for A) Really bright sounding, improperly installed car audio with too many tweeters or B) If you are deaf. Find another way to get rid of the noise.
Date published: 2015-03-11
Rated 5 out of 5 by from Works greatI bought this to get rid of some feedback I was getting from running rcas from a sound card on my desktop to my Yamaha receiver to play media from that same desktop onto my Samsung tv. Worked flawlessly I have no feedback what do ever just a clean audio signal.
Date published: 2015-02-10
Rated 5 out of 5 by from Great product to end Hummmmm...Ive purchased these on multiple occasions, and keep them in my service vehicle at all times. As an Audio video systems integrator, Ive been in the business 30 years and ground hum can ruin a great installation. This device solves the problem consistently, zero effort, and no degradation of sound quality. Its the 10 second fix for ground loops between audio video systems and audio distribution amplifiers.
Date published: 2015-02-06
Rated 5 out of 5 by from Gets the job at lower costBought to fix humming subwoofers (30ft cable) that could not be fixed by Calrad Audio Isolation Transformer. The noise is gone. 1 isolator fixes 2 subs for <10$ wheras the 20$ Calrad did not fix a single sub.
Date published: 2014-11-12
Rated 5 out of 5 by from Noise EliminatorI was ready to get rid of my Klipsch subwoofer since I couldn't get rid of the hum after trying different connections. Installed this according to the diagram-BAM hum was gone. Best thing I have bought in a long time and not an expensive fix.
Date published: 2014-08-22
  • 2015-11-27T06:29CST
  • bvseo_cps, prod_bvrr, vn_cps_3.1.6
  • cp_1, bvpage1
  • co_hasreviews, tv_0, tr_48
  • loc_en_US, sid_265-012, PRD, sort_mostRecent
  • clientName_PartsExpressInternational

Product Q&A

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Ground Loop Isolator

I use it for a subwoofer which needs only one RCA plug. Can I use only just one side of it? What if I use a "Y" adaptor at either ends, will I double the benefit?  

Asked by: Akla
You do not need to use a Y cable, simply use one side or the other.
Answered by: MattP
Date published: 2015-02-07
  • 2015-11-27T06:41CST
  • bvseo_cps, prod_bvqa, vn_cps_3.1.6
  • cp_1, bvpage1
  • co_hasquestionsanswers, tq_1
  • loc_en_US, sid_265-012, PRD, sort_recentQuestionsFirst
  • clientName_PartsExpressInternational

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Ground Loop Isolator
Part # 265-012
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