i know this thread i for z-5500 im nt supposed to be here, just a quick question i just purchased a z-2300 2.1, is it advisable for me to change to a better sound card as im using my onboard sound to play movies and music will i notice a significant difference as for my old pc before i used sonic gear BT2X and a audigy 2 i noticed that the sonic gear cant take the sound produced by the card as the wooffer keep rattling and i cant enjoy full potential of the sound card will i experience the same if i upgrade my sound card just for the z-2300, hope the sifus here can help me.