Need help with bookshelf speakers connected to computer.

[goldsdad]

This, http://www.amazon.com/Onkyo-TX8020-TX-8020-Stereo-Receiver/dp/B00EE18O7W

and use these speakers, Amazon.com: Klipsch R-15M Bookshelf Monitor Speakers - Pair: Electronics

 

So i'm thinking of connecting the amplifier with a optical digital audio cable from my computer and then connect the speakers to my amplifier.

 

I don't see an optical input on the TX-8020. Are you sure you've posted a link to the correct receiver?