Ok, I have a soundblaster audigy soundcard. the one with all the connections that fit on the front of the pc. the speakers have no eq. I'm talking about the mixer program that came with the soundcard, just your simple bass and treble simple bass and treble. but, if need be, this thing also has just about every peramiter of an eq that you could think of if enabled. right now it's disabled to keep it simple. I dont know if this cleared anything up or not, but thanks for any help.