Alright so im really digging the av 40's as a cheapish set of computer speakers for when im in the mood for speakers but i definitely miss some bass since im used to listening to my Denon D7000's. I then realized that i could add a decent 200ish$ active sub and get more bass and it would be clearer but i really don't know how i would go about hooking it up. I am running my Av40's with an RCA connection to this soundcard
What sort of cables would i need to use to hook my sub together to complete my speaker set-up.
I could also use some recommendations on a good sub i could get for 200 or less.
Thank you
P.s. only the RCA jacks are being used on my soundcard so everything else is free if it matters







