# RCA shorting plugs worth it for PS Audio equipment? **URL:** \ **Category:** Audio Components\ **Created:** [May 27, 2022, 12:40pm UTC](https://forum.psaudio.com/t/rca-shorting-plugs-worth-it-for-ps-audio-equipment/29181 "2022-05-27T12:40:21Z")\ **Posts on this page:** 1\ **Showing post:** 3
**Author:** ![Elk](https://sea1.discourse-cdn.com/flex015/user_avatar/forum.psaudio.com/elk/32/1240_2.png) [@Elk](https://forum.psaudio.com/u/Elk)\ **Post date:** [May 27, 2022, 2:26pm UTC](https://forum.psaudio.com/t/rca-shorting-plugs-worth-it-for-ps-audio-equipment/29181/3 "2022-05-27T14:26:27Z")
This comes up a lot. Here is another thread: > [@Noise blocking caps](https://forum.psaudio.com/t/noise-blocking-caps/28714/9): > > Powerfreq That’s an interesting response from Luxman especially given the challenge of getting the dealer who sold me my P-750u to provide me with the XLR and RCA caps. Like you, I thought that they kept out the dust and had no impact on the SQ. How are you finding your 750u? I found it to be a quantal improvement cubed on the built in headphone jack on the BHK PreAMP. Have you tried XLR balanced cables on your headphones with the 750? I have Sennheiser HD800s and the balanced cables vary bet… --- _[View the full topic](https://forum.psaudio.com/t/rca-shorting-plugs-worth-it-for-ps-audio-equipment/29181)._