Bad sound signal to JBL LSR305p's

[vinhdangnguyenprivate]

I have set up my two JBL lsr305p's to my computer, but the audio signal is very bad with a lot of crackling.
I don't think there's anything wrong with my speakers, since i just bought them new, and my headphones seem to work fine with my motherboard, so I thibk it's something about my cables.

My cables:
https://www.av-cables.dk/minijack-splitter-kabel/slim-3-5-mm-minijack-splitter-kabel-0-15-m.html
2x https://www.av-cables.dk/jack-til-minijack/minijack-han-til-jack-stereo-han-kabel-3-m.html

So I now know that I could've just bought something like this
https://www.av-cables.dk/minijack-til-jack-kabel/sweex-jack-stereokabel-2-x-6-35-mm-han-3-5-mm-han-3-m-2.html
but I don't know why my current set-up doesn't work. It's a 3.5 mm male stereo jack to 2x 3.5 mm female jacks - a 3.5 mm jack in one end and a 6.35 mm jack in the other end (one for each speaker).

 

[hang-the-9]

The speakers are set for a balanced input, read this https://www.epiphan.com/blog/audio-cables-balanced-vs-unbalanced/

Then do a web search for "convert unbalanced to balanced" to see what you need to fix this, or contact JBL and see what they suggest for their product.