The Hun,
Thanks for the advice. I changed the size to small and set the cross over for 60 for now. I'm going to play with it more, but because my sub is not anything spectacular (B&W's entry level ASW 300), I'm hesitant to send too much to it. I don't want it to dilute the sound of the 804s. Not sure if that makes any sense...

I'll continue to play with it to see what works best.