Speakers emitting a static sound

[AmyRoses]

Hey,

recently, I swapped out my newer speakers for my older speakers, because they started having a bad static noise. This is still present on my older speakers, but to a lesser extent.

The crackling is not present when using earphones, but is present with every port if my speakers are plugged into it. I tested my newer speakers with my phone, and didn't find any static present.

The speakers are both fairly cheap,

Something interesting I've noticed is that moving my hand next to my speaker significantly amplifies the noise.

Thanks

 

[AmyRoses]

An update on this, it seems to only have the obnoxious static noise when my laptop across the room is also switched on. This is pretty odd. What could the problem be?