Reddit reviews JacobsParts AFILTER-B 2-Channel RCA Stereo Ground Loop Isolator
We found 3 Reddit comments about JacobsParts AFILTER-B 2-Channel RCA Stereo Ground Loop Isolator. Here are the top ones, ranked by their Reddit score.
Eliminates humming and buzzing due to ground loop issuesFilters out DC current in the signal pathConnectors: 2x RCA Male, 2x RCA FemalePassive in-line deviceCurrent Rating: 20A
Had this same issue with an older DJ controller and a laptop... it's a grounding problem with the outlet.
Get yourself a Ground Loop Isolator and the buzzing should disappear.
I had the same problem in an E46, you need a ground loop isolator: https://www.amazon.com/JacobsParts-AFILTER-B-2-Channel-Stereo-Isolator/dp/B00TED5T64/ref=pd_lpo_vtph_lp_img_2/133-3835736-2006417?_encoding=UTF8&psc=1&refRID=84VZ705Z8YVY9PYJ6HF0
Sounds like a ground loop problem... through the USB wire... and it sounds different between your laptop and desk top because one is probably shielded better..
You could modify your equipment to give it proper chassis ground..
You can buy one of these.. but they impact sound a bit.. https://www.amazon.com/dp/B00TED5T64/ref=cm_sw_em_r_mt_dp_U_f2NxCbQQ83BBX
Do some research to find out which solution would be better for you.