That link worked!

I've got good news and bad news.

Good news: I think you can make those speakers work with an audio interface.

Bad news: you're still going to need an adaptor from Radio Shack.

You will need two 1/4" female to 1/8" male TRS adaptors. They look like this:

They're pretty cheap (around 3 bucks I think?) so luckily it won't be a big dent in your wallet.

I've had no issues with my audio interface so yeah I would recommend it! It's super easy to set up (just plug it in) and it does what it's supposed to.

I'm glad to be of help! I know getting all of this stuff off the ground can be a headache.