Additional sound speakers

DJ Life & Community General Discussion
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Additional sound speakers

I am playing for many ears with laptop and a controller - I have a stupid Asus laptop (x54hr) - some Pentium CPU, 4 gb ram, 1500 gb HDD, windows 10 and my software of choice is Traktor (2.10 i think).
The controller is Vestax vci 400 - latency 15.6 is ideal.
When i connect it to speakers in a bar/pub/club the sound is never CLEAN. There is some additional noise.
My friend is playng with an external soundcard for let’s say 10 usd. His sound is crisp and clear.
When i disconnect the laptop charger the sound is wonderull.
What can i do for having a clear sound - buy another charger or what?

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That Behringer Ground loop isolator would be the cheapest route and you never know when it’ll come in handy even if you upgrade your laptop.

The cheap $5 ones for car stereos will do the trick in a pinch, but don’t expect them to last

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Could it be the fact that i am doing it all wrong?
I am mostly connecting to a mixer. I am doing it with a ts to RCA, and i am guessing it may be TRS?
Ot maybe xlr to rca?