How to improve sound coming from a laptop?

Hi

I am about the get a decent integrated amp for my room and plan to use one of my laptops for playing music.

One is a macbook air 2013 and a windows laptop from 2017 capable of gaming.

What I was originally going to do was to plug a decent USB cable directly from the laptop to the amp.

But, then I wondered what if the usb connection are affected by white noises?

These laptops are not meant for music server!

From internet search, I came across with jitter cleaners and reclockers,

but was not sure if this will help the laptop sound.

Does anyone have experience with using a laptop as a music server or a stream?

Do you recommend any device? under $500-600?

Thanks!