PC Setup Advice?

[snol200]

So I'm considering purchasing these bookshelf speakers and subwoofer.

https://www.newegg.com/Product/Product.aspx?item=N82E16886200062
https://www.newegg.com/Product/Product.aspx?item=0S6-0033-001U0

Do I just need an amp to connect them to my pc? I've found ones that have left and right channel, but nothing with a sub out. Do I need a sub out? How would I connect it without one?

 

[americanaudiophile]

You don't need a subwoofer output if your PC has one. Set to 2.1 that will crossover the satellites.
If yours doesn't then you can use one of these
https://www.parts-express.com/smsl-a2-tda7492-2-x-40w-stereo-amplifier-with-sub-out--230-218
or get a soundcard with subwoofer out.