Yeah, I've seen the Audigy 2 NX in action. It works pretty damned good. maybe you have somthing that conflicts with it?
My 2nx works great, but the my Tweets are crazy loud and i hardly heard the singing part of it... The EQ in the sound card is just BS... Just to get bass you have to turn on CCMS or whatever and then click on surround sound... well that makes that music echo... I have very powerfully system, so i hear it and i hate it.. When i had audio running thru the deck it was perfect..
Are you set up for stereo or quadraphonic or what? Are you connecting your RCAs directly to the 4 channel AMP? Or do you have a graphEQ in between? What's your setup like?
What version driver are you using?
Here is my setup.. from the sound the front and rear is running into 4 channel amp and sub to sub amp.. No graphEq or anything.....