Hey, so I have a HD650, DT880, and a Paradox. So if I got the S.E.X, is it as good with the HD650's as the Crack w/ speedball is? The thing is, is that i have the O2/ODAC for the Paradox(which the owner LOVES with the Paradox). So with the HD650 and DT880, basically, taking the Paradox out of the picture, which would be better, the Crack or S.E.X.?