75 watts is enough for pretty much any speaker.
i had some cdt ef carbon fiber mid series. bought from Djdilliondon for 220 shipped. those were some nice speakers imo. powered with a bridgd orion 4004. 200 watts per speaker and they are crystal clear uptil the very top. i now have the boston pro 60's which off 300 watts sound good but dont even get as loud as my cdt's did with 100 less watts. but they do sound a TINY bit better imo.i love my CDTs...150rms to each side. they get loud! and sound clear...and are well worth it the $. i got a steal on mine for 170 shipped. i'd buy the CDTs but only because i run them and know how awesome they sound...
with 200W rms i'd say run 3 ways you will not be dissapointed!