Can I use a splitter for 2 sub woofers / receivers?

-I'm using this 1200 w divinci sub woofer / receiver through the headphone jack because it's connected to my computer, I have 2 of these sub woofers though, So I was wondering if I used a headphone splitter if I can use 2 sub woofers at once ? Or would the sound be low quality / distorted?