# Differential cables **URL:** \ **Category:** Uncategorized\ **Created:** [May 9, 2023, 8:54pm UTC](https://forum.quantasylum.com/t/differential-cables/888 "2023-05-09T20:54:34Z")\ **Posts on this page:** 1\ **Showing post:** 43
**Author:** ![daleshirk](https://avatars.discourse-cdn.com/v4/letter/d/e9bcb4/32.png) [@daleshirk](https://forum.quantasylum.com/u/daleshirk)\ **Post date:** [February 3, 2024, 2:40am UTC](https://forum.quantasylum.com/t/differential-cables/888/43 "2024-02-03T02:40:15Z")
Here’s a batch of audio cables and stuff I built. Unfortunately I haven’t taken time to really dive deep in the measurements yet. > [@Some Audio Adapter Cables](https://forum.quantasylum.com/t/some-audio-adapter-cables/1062): > > Just a quick note to shown some of the audio adapter cables I made, in case others are interested. I cut up short premade BNC jumpers and line spliced them to a 5 foot length of star-quad stage cable, chosen for it’s flexibility and freedom from interference pickup. I wanted to avoid the potential magnetic sensitivity of widely separated + and - cables. I in-line spliced the center conductor, slid the braid back over and solder tacked it together, then I slid a 2.5" piece of… As to going unbalanced output to differential, RCA tip to + and RCA shell to -, BUT, to keep the - from becoming a large antenna, you will then need to separately ground the unbalanced DUT, and use the analyzer differential input to subtract out the difference between the DUT’s ground and the analyzer’s ground. While the analyzer has a fairly high impedance from the BNC shells to USB power from the computer, all analyzer BNC shells are solidly connected together, so if your generator output is driving an unbalanced input, you’ve already connected the grounds together. It’s all part of why unbalanced sucks. Dale Shirk --- _[View the full topic](https://forum.quantasylum.com/t/differential-cables/888)._