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These high-quality RCA protective caps are ideal for either shorting or non-shorting applications. They can avoid the RCA sockets from dust and dirt and prevent the socket from rusting in order to maintain the best conductivity.
- Helps to shield and block your system from unwanted noise and RF, RFI, and EMI emissions.
- Prevents and stops dust & dirt from building up in unused open RCA connectors.
- Gold plated brass to ensure ultra shield and protection shield against RFI, EMI, dust, dirt, and corrosion.
- The middle pin is detachable, there is no short circle without a pin and it could short circle with a pin.
Brazil D Uluwita
Reviewed in the United States on February 22, 2025
Worth the money you pay.
JR
Reviewed in the United States on August 14, 2024
I recently purchased the RCA dust caps with EMI blocking and I'm thoroughly impressed! Not only do they provide a snug and secure fit on my RCA connectors, but they also offer an added layer of protection against electromagnetic interference (EMI).The caps are made of high-quality materials and are built to last. They're easy to install and remove, making them a convenient addition to my audio setup. The EMI blocking feature gives me peace of mind, knowing that my signals are protected from I highly recommend these RCA dust caps with EMI blocking to anyone looking to protect their audio equipment and improve sound quality. They're a simple yet effective solution that's well worth the investment.Pros:- Effective EMI blocking- High-quality materials- Improves sound quality (Placebo?)- Protects RCA connectors from dust and debrisCons: The center pin is hard to get out.
Rolf Stein
Reviewed in Canada on October 31, 2024
Good price
Dusty
Reviewed in the United States on April 20, 2021
NOTE: Before installing these, make sure you twist the pin connector all the way into the housing. Most of the ones I received were fairly loose, which could result in getting a pin stuck in your RCA inputs if you go to remove the plug and the pin has wiggled its way out of the housing.These little plugs do the trick nicely to cap off your open RCA input terminals. I use them to close off the open grounds on the RCA plugs on my preamp, and they fit well. The fit and finish are pretty good, with decent rhodium plating and a hefty feel for the size.
MrChiSox
Reviewed in the United States on January 29, 2020
My own personal experience using these is limited in time; I just got them yesterday. The thing is, I can be absolutely certain that these work as they should and have made a huge difference in what I hear coming out of my headphones. OK, so why is that? Well, a while back I purchased a small tube amplifier, the Little Dot MKII right here on Amazon. I also purchased upgraded tubes. I have been listening to my new tube amplifier for a few weeks now and love it, except for the fact that I have been battling a kind of low grade buzz which I wasn't able to hear while music or video was playing, but I could definitely hear it during the very quiet places and/or between tracks. It wasn't terrible but it was bad enough to just get under my skin a bit. I want music to sound as good as I can possibly make it sound given the gear I own and my limited budget. I listen on a pair of Sennheiser HD 600 headphones and this setup is pretty nice sounding to my ears. So here's where this product excels; I first plugged in 2 of these with the posts still attached and they did in fact make it much quieter, in fact I couldn't hear much of anything, even turned to near full volume. Once I unscrewed the posts and capped the outputs to my Little Dot the volume came back, the buzz is entirely gone and all is nearly right in my own world. I can find enough other RCA jacks to use the remaining 8 of these. I'd say do yourselves a favor and buy these if you are having a similar problem with a buzz. Skip the more expensive choices. In most cases I don't think anyone is likely to even notice these unless they happen to know of your buzz situation and one day notice that it's a thing of the past. This was a very inexpensive and effective fix!
nlbs
Reviewed in the United States on September 16, 2019
Fits snugly. Using it (without the centre pin) to protect the unused RCA in/out on my integrated amp from tarnishing. Looks nice & neat. Also like the little knob for ease of handling & grip. Hope the Gold plating doesn’t oxidise too easily.
notmarx
Reviewed in the United States on August 5, 2019
Nicely made; the screw-in pin means you can use it not only as a shorting plug for input jacks but also as a cover for output jacks. I used them on a couple of empty inputs on a Radio Shack switcher; the difference was dramatic.
Daryl G. Harmon
Reviewed in the United States on December 17, 2019
Got these for my home theater processor and power amp to cap the rca inputs that are not being used. Easy to plug them in and they look great
audiom3
Reviewed in the United States on July 28, 2017
I bought a few packs of these for my Krell HTS 7.1 Preamp. On some inputs, I was getting a very high pitched buzz (~16kHz?). It was audible from my chair which is 9' away. I figured this had to be RFI or EMI and these are cheap enough to give 'em a shot. Well to my surprise, they worked! I won't say anything outlandish about sound quality improvements but they got rid of that annoying buzz. The only time it was audible after installing these was when I turned on the TV - and muuuuch less so. I was using a coaxial cable for the Krell's setup menu. And being as it's all setup with timing and balanced SPLs now, I went ahead and unplugged that coaxial cable. Now it's as quiet as a tomb in all inputs. I still have a few inputs left to cover so I've gone ahead and ordered 2 more packs. So to sum up this review.... If you have RF problems, these might help. If your system is quiet, save your money.
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