Hookin' up either of these to my PC to drive a set of Titans/PDR10 I think..

http://www.ecost.com/ecost/ecce/sho...asp?dpno=185910

http://www.ecost.com/ecost/ecce/sho...asp?dpno=292772

What's the diff?

I'll be pairing them up with a set of paradigm titans/pdr10