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4 Channel Ground Loop Isolator
In Stock This item should ship tomorrow (11/25/2015) if ordered within 15 hours 42 minutes

0.58 lbs

Flat Rate Shipping Prices

  • 0-3lbs- $4.99

4 Channel Ground Loop Isolator

Isolate and eliminate noise caused by a ground loop in an audio circuit with this Four-Channel Ground Loop Isolator.

The isolator ensures that the shield ground on each audio cable is isolated from any equipment ground, which could cause audible noise when amplified. This device has four channels, composed of two pairs of stereo (L+R) inputs and outputs.

The nominal DC impedance of the device is 100 ohms and the audio impedance is 3500 ohms at 1000 Hz. The nominal input power is 50 watts, with a maximum power level of 100 watts.

Each of the RCA plugs and jacks is gold-plated to ensure smooth, corrosion-free connections. The unit measures 3.9" x 2.0" x 0.9" (100 x 50 x 22 mm) and both the input and output leads measure 9" in length.

Note: The packaging erroneously indicates that the isolator's case is made of metal. It is in fact made of plastic. We are working to correct this discrepancy and apologize for any confusion or inconvenience it may cause.

35 Reviews

86% of the reviewers recommend this product

  • Anonymous,
  •  ,  
  • 5/24/2015 3:12:12 PM

Another cheap quality piece from monoprice. Looks off brand but works perfectly. Used in a 98 C280 Mercedes with an after market Kenwood CD player. Cancels all noise and interference in one instead of usually 2 box's.

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  • Anonymous,
  •  New Palestine, IN 
  • 12/29/2014 2:25:28 PM

Item does what it is supposed to do. The shipping time to get this was too long in my opinion. If I want something quickly I'll use ebay or amazon.

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Good so far

  • Anonymous,
  •  Kuttawa, KY 
  • 12/18/2014 1:29:55 PM

Seems to be doing the job. It has eliminated the noise I was trying to get rid of.

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Another quality product from Monoprice

  • pmilkes,
  •  Oak Park, CA 
  • 11/19/2014 10:57:15 PM

Pros: This device solved a major loud hum problem associated with ground loop with my audio/music system, as advertised.
Handles 4 channels ie: 2 each stereo (left and right sources), all the other ground loop isolator a that I found would have required 2 ground loop isolators as they only support 2 channels.

Cons: Absolutely none

I use 2 MacBook Pros sharing one keyboard and mouse and sharing one audio sound system via an audio mixer. When all of the cables are plugged in there was a loud hum, which, as it turns out was associated with ground loop. This device solved the problem completely, as advertised.

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Worked great, excellent price

  • Paul,
  •  Escondido, CA 
  • 11/3/2014 2:14:15 PM

Pros: Excellent for car audio use since you'll often need two pairs of wires for multiple channels/amps (front/back/etc). This made it a lot cheaper (most stereo units cost ~$15-20) and easier/smaller to place inside the dash somewhere.

Cons: None. It worked perfect for me.

My brother's mid-90s Lexus ES300 had a terrible ignition/alternator whine when we installed a new stereo. It has an upgraded stock stereo system that uses an amplifier so the wiring harness for the car plugged into four RCA pre-amp outputs on the new stereo. A little research showed that this is a common ground-loop issue with aftermarket stereos for this car. The Monoprice ground-loop isolator was perfect since we only needed one because it has four-channels and it sounded perfect. No complaints at all.

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