AudioQuest RCA Noise Stopper-Caps -10 pack

Listening to music that is presented on vinyl and (SA)CD is my one of my greatest pleasures. I also abhor dust, dirt and pollen that have a penchant for settling on my stereo equipment and finding its way into every nook and cranny of my amplifiers and playback devices. So, as a music enthusiast with a little extra cash, I have purchased "noise stopper" and "dust" caps to grace my unused RCA and XLR inputs and outputs.

Do they make a noticeable difference in the sound produced on tower speakers or through headphones? Frankly, I cannot hear it. Perhaps if I had an egregious RFI problem I might be able to tell. So much of a stereo system's performance is based on the ears -- and dare I say it, the Pygmalion effect -- that a person brings to the listening experience.

Ultimately, for me the driving factor is keeping my stereo system as pristine as possible. Accordingly, I have purchased both the AudioQuest and Cardas caps which give me assurance that they contribute to preserving the sounds and cleanliness I desire.

The caps are beautifully made, fit smoothly over and into the vacant RCA/XLR ports, and provide a professional look. For prospective buyers, you will have to decide whether the dust prevention, audio performance, or simple audio jewelry benefits warrant the expense. For me, it's an affordable and positive decision.

Not sure if these work or not,but if all they do is protect dust from getting in the rca jacks,then that's ok with me for the $$.If you have invested in the ballpark of 5grand and up then you can spend the cheap insurance imho.