shielding

Hello, I decided to add noice cancelling into my old Bluetooth headphones, by taking everything inside and putting them in a new 3M peltor earmuffs (I know how original). My question is when I took apart the headphones I kept seeing lots of copper wrapped cables, Im only interested in the two...

Archimago tested various RCA cables for their noise performance, and came to the conclusion that it doesn't matter: https://archimago.blogspot.com/2013/05/measurements-analogue-rca-interconnects.html I somewhat had a hard time finding information via the search function here if shielded cables...

I want to properly wire a Primo EM272 electret microphone capsule (specs) to use with battery-powered as well as mains-powered (mic->interface->PC->mains) recorders. Which of these cable layouts would be the correct choice? And Why? Thank you so much for your help!

I think I need heavy ammo in shielding my office music hardware, and don't know how to narrow this down. Like a gigantic Faraday cage? Tin foil hats for all equipment? Victrolas? Most of my listening is done at the office. I use both a portable DAC/Amp and a desktop DAC and Amp to listen to...

Hello, I would like to ask for some advise for "balancing/clearing audio signal" (can't describe it better). I get that "good old" electric fuzz, mainly when under load. This gets better (but still present) when I literally take copper wire, put it under one screw holding the motherboard to the...