[spitfun]

I am looking at upgrading my speakers ( just the mids and tweeters for now). From what I see I have the s677 hifi professional dsp system,are they just 4 ohm speakers which means I can go with any speakers that fit or am I missing something? I don't want to remove door panels to look as I hear the clips break so I would rather have new speakers on hand and remove it only once.