3 at the same time – excessive,necessary?

hello I have before me in the spring again to install a system in my car, should be really fine because I want to have as little as possible in the suitcase room I thought of 3 tmts in order to compensate the missing sub as well as possible and so that the whole not the medium and the tweeter overtoned I have before Jewels 3 medium and 3 tweeter insert everything in front understands itself ls are already fix it will be here +cdm54 or cdm 88http://www.morelhifi.com/products/mob_2 way_supremo.html as an amplifier I thought of http://www.trutechnology.com/products/copper/c74ssmk2.html what do you think of the idea to connect this amplifier to the fs? your opinion on my project would interest me thanks gruss