I got a pair of Emotiva Airmotiv powered speakers and would like to hook them up with a sub using my sound card. I have an Essence ST, with RCA outs...the speakers also have RCA inputs, so I'm set there. I've been looking for a subwoofer to add that has RCA ouputs on it to hook the speakers up to and the only one I came across was the Audioengine S8. I was wondering if theres anything out there to compete with the S8 or maybe something that would give more bank for your buck.
I am not using a receiver because the speakers are being used as PC speakers and I dont want to add any more components....the speakers are self powered and I'm guessing the sub would have to be as well in this case correct? Emotiva suggested splitting each RCA output from my sound card and sending both to the Red/White inputs on the sub I already have (it is powered, but made for a home theater), and the other splits to each RCA input on the speakers...is this the correct way to use a powered sub that has no RCA outputs for the speakers to connect to?

















