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AudioQuest RCA Noise Stopper-Caps -10 pack

4.3 out of 5 stars 19 customer reviews

Price: $38.75 & FREE Shipping on orders over $49. Details
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  • 10 Noise Stoppers per Package
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$38.75 & FREE Shipping on orders over $49. Details Only 4 left in stock. Sold by HCM Audio and Fulfilled by Amazon. Gift-wrap available.

Frequently Bought Together

  • AudioQuest RCA Noise Stopper-Caps -10 pack
  • +
  • AudioQuest - XLR Caps (Input)
  • +
  • Audioquest XLR Caps (Output) - Set of 2
Total price: $96.25
Buy the selected items together


Technical Details

  • Brand Name: Audioquest
  • Model Number: Audioquest RCA Jack Noise Stopper

Product Description

Extraneous and unwanted RF / EMI signals are everywhere. Cell phones, computers, microwave ovens, and other devices spew these sources of electrical noise that highly sensitive audio and theater components can pick up. The AQ Noise-Stopper caps are grounding plugs (not shorting plugs) that help you block out this unwanted noise. Just slip a cap over the open inputs on the back of your components. AQ Noise-Stopper caps lower the noise floor and allow your equipment to perform to it's fullest potential.

Product Information

Product Dimensions 5.8 x 2.8 x 0.6 inches
Item Weight 0.3 ounces
Shipping Weight 0.3 ounces (View shipping rates and policies)
ASIN B00447ZOCE
Item model number Audioquest RCA Jack Noise Stopper
Customer Reviews
4.3 out of 5 stars 19 customer reviews

4.3 out of 5 stars
Best Sellers Rank #67,046 in Electronics (See Top 100 in Electronics)
#233,615 in Electronics > Accessories & Supplies
Date first available at Amazon.com September 23, 2010

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Product Warranty: For warranty information about this product, please click here

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Customer Reviews

Top Customer Reviews

By Kenneth F. Krutsch on March 20, 2013
Verified Purchase
Not sure if you need these, or not, but I am a fanatic with my hobby and I like the idea of cleaning up the appearance of the back panel. Supposedly, these caps protect your system from unwanted EMI which may cause static or noise.

So, I capped all of the open RCA plugs on my AVR. These look sweet, are surprisingly heavy and solid looking and feeling and fit very snugly on the back. So snug, that I needed a pliers to remove one.

Works for me!
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By keef on January 5, 2012
Verified Purchase
As a person who deeply appreciates music with Mcintosh. British ATC speakers and Nordost Heimdall interconnects and speaker cable, these caps do allow a quieter less distorted presentation. I have definitely noticed a difference as has my wife who isn't into the music as much as I!
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These caps DO WORK,but you must first address other issues in your system to get their full effect.First being good quality wiring.Interconnects and speaker cables should be the same brand to insure impedance matching.Secondly a power conditioner is critical for removing AC grunge.At least a decent power strip with high RFI filtration.A dedicated high end power conditioner is best but may be out of your budget.Using these caps will improve focus and detail in even a modest system.I have a Sony receiver a cd/dvd player and bookshelf speakers with a powered subwoofer with MIT Terminator 3 interconnects and a tripplite ultra isobar8 power strip.Adding just one cap on my cd players digital coax output made a noticeable improvement.
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Improved imaging and focus with increased clarity. Improved the image of my JVC 4K projectorm most oi the benefits came from capping the inputs and outputs on the Classe 800 SSP but improvements were also noted capping the 3 component inputs on the back of the projector
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I needed to reduce some airborne RFI that was causing noise in my stereo systems here and these caps have reduced the buzz I was hearing before they were popped onto open rca input interfaces. They work for me..
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Verified Purchase
What a difference these caps made! I have a vintage Sansui integrated amp, that sounds great. I noticed, though, the turntable noise (background needle on record) was more noticable than on my other stereo system. I purchased these caps to see if there would be a difference, and I can't believe what a difference they made! Background noise is almost non-existence now. Nice heavy quality metal caps which fit over the RCA plugs on back of receiver or amp. I will be buying another set for my other stereo system.
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I bought these noise stoppers for a lark, after reading about extraneous noises that can enter into one's hi fi through unused RCA connectors. I was pleasantly surprised that, after inserting these caps into all the unused RCA connectors, the sound became much cleaners, with many previously unheard details emerging for the first time. Considering the price tag (only $40.00), this is an amazing upgrade to the sound quality I'm enjoying through my system. Highly recommended.
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Have NOT noticed any difference.
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