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AudioQuest RCA Noise-Stopper Caps

Cap unused RCA inputs to reduce RF/EMI noise (set of 10)

8 Reviews

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Item # 703RCANSC

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Overview

Our take on the AudioQuest RCA Noise-Stopper Caps

You can't see it, but radio-frequency (RF) and electromagnetic (EM) interference is all around us. Cell phones, computers, microwave ovens, and loads of other devices generate this electrical noise. That noise can be picked up by sensitive audio components a number of ways, including through open RCA and XLR inputs. RF interference is particularly problematic for high-performance audio gear, harming dynamics and clarity.

Put a cap on interference

AudioQuest RCA Noise-Stopper Caps

You can't see it, but radio-frequency (RF) and electromagnetic (EM) interference is all around us. Cell phones, computers, microwave ovens, and loads of other devices generate this electrical noise. That noise can be picked up by sensitive audio components a number of ways, including through open RCA and XLR inputs. RF interference is particularly problematic for high-performance audio gear, harming dynamics and clarity.

To reduce the amount of interference entering your system, try "capping" all unused RCA inputs. You may be pleasantly surprised by a deeper background silence and subtle, previously unheard details emerging from your system.

These actually worked! I hear lower levels of quiescent noise from my Anthem preamplifier and amplifier after implementing the "AudioQuest RCA Noise-Stopper Caps" on the dozen RCA inputs.

Andrew, Capitola, CA

What's in the Box:

  • 10 RCA caps
Reviews

AudioQuest RCA Noise-Stopper Caps Reviews

Average Customer Review(s):

(8 Reviews)

These actually worked!

Andrew from Capitola, CA on 10/4/2018

Crutchfield Customer Review (What's this?)

These actually worked! I hear lower levels of quiescent noise from my Anthem preamplifier and amplifier after implementing the "AudioQuest RCA Noise-Stopper Caps" on the dozen RCA inputs.

Pros: The pro, they work. You will experience much lower levels of quiescent noise from your preamplifier and amplifier after implementing on all RCA inputs.

Cons: The con, all AudioQuest products prices are high for some family budgets. However, when you spend thousands of dollars on preamplifier and amplifier, the cost is not bad.

AudioQuest RCA Noise-Stopper Caps

Crutchfield customer from Louisville, KY on 7/3/2018

Crutchfield Customer Review (What's this?)

work and look great

Pros:

Cons:

AudioQuest RCA Noise-Stopper Caps

Maxwell from Jamaica, NY on 5/14/2018

Crutchfield Customer Review (What's this?)

Humming noise from the subwoofer has reduced considerably. Has therefore ordered more for unused inputs of the receiver.

Pros: Reduced humming noise considerably

Cons: None

Great product.

Mark from Morristown, NJ on 1/16/2018

Crutchfield Customer Review (What's this?)

Great product. Improved sound while controlling dust! They also look good!

Pros: Better sound & controls dust.

Cons: None.

audioquest rca noise=stopper caps

John from Maryland on 1/3/2016

Crutchfield Customer Review (What's this?)

These caps did indeed cause the whole system to become more quiet. I liked them so well that I ordered a second set.

Pros: They do exactly what they claim to do.

Cons: None

Noise caps

NevadaDon from Nevada on 6/18/2015

Crutchfield Customer Review (What's this?)

They look good. They're a little loose fitting right out of the box but with a VERY SLIGHT squeeze with a pair of needlenosed pliers, work perfectly. At least they're not an overly tight fit like Monster Cable's RCA plugs where you think your going to tear the jack out of your receiver when you unplug them.

Pros:

Cons: A bit on the expensive side.

AudioQuest RCA Noise-Stopper Caps

Crutchfield customer from Port Orchard, WA on 9/7/2014

Crutchfield Customer Review (What's this?)

Well made, fit well. An incremental improvement. Not sure how much of an audible difference these caps make, but for the price, they are a piece of the audiophile's puzzle in the quest for the illusive "silent soundstage".

Pros:

Cons:

Audioquest RCA noise stopper caps.

Lance Rock from Detroit, Michigan on 6/28/2014

Crutchfield Customer Review (What's this?)

Total upgrade of all cords,cables, accessories, with audioquest noise reducing connectors made my whole cd collection accessible. Discs that I couldn't listen to have gone from unlistenable to masterpiece!

Pros: Total audio and video transparency no interference!

Cons: None!

Details

Hands-on research

Product Research

Features

RCA Jack Noise-Stoppers: The Audioquest Noise-Stopper Caps fit over unused RCA jacks of your AV components preventing RFI and EMI noise from entering the active circuit through open RCA inputs or outputs. Noise-Stopper Caps also protect against dust and corrosion. 10 Noise-Stopper Caps are included.

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team. They verify what’s in the box, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.

Q & A

Customer Q&A

Crutchfield asked  
Why did you buy this?

Because I am on a quest. A quest to eliminate alll extra noise from all my audio inputs. [ Andrew  Sep 20, 2018 ]
Good idea. I'll give it a try and see if I can notice a difference [ Jim  Aug 30, 2018 ]
Because I think I can definitely use them and it makes complete sense. [ Glenroy V  Apr 29, 2018 ]
To try out. [ Shaun  Feb 13, 2017 ]
Have used Cardas RCA caps when they first appeared. Now need a few more, and AQ's version looks to be high in quality and just as effective, and is more economical. [ David P.  Dec 08, 2016 ]
To complete my upgrades to an audioquest system . ( VODKA HDMI, VODKA OPTICAL, and now power cords and RCA stopper caps. [ Lorie  Jun 17, 2016 ]

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