enhancing the front stage

Right now I got Diamond M3 seriers 5.25" components in the door, the tweeters are on the dash being bounced off the front windshield.  My front stage is there, but could really use some help.  I have been thinking of a few ideas.  Maybe upgrading the speakers to the M6 seriers or maybe HEX.  But was thinking power might be a problem, only got 75 watter per ch.  Was also thinking of adding kick panels and adding another set of components and wiring them in parallel to the front speakers. If i did this i was thinking the M6 seriers.  What do you guys think?  Is 75 watts enough to drive the M6 or HEX series speakers?  As always thanks.

If you need better mid-bass than your comps currently provide, here's a suggestion.  Get a nice set of 7" woofers like any of these.  I like the sound of the Scan Speak woofers or the Peerless.  Focal and Vifa are also pretty much the same as Scan Speak  Build sealed enclosures to the woofer spec you chose and install them in the kick panels.  Build a passive 2-way crossover at around 250 to 600 Hz depending on how much you want to drive the sound to the new woofers, with the low pass to your new woofers (or notch it between your sub frequency and your target setting) and use the high pass to feed the crossovers for the component set.  This will direct those mid-bass frequencies to the new woofers and away from the comps without adding amplifier channels.  A project like this is fun and can dramaticly improve your front sound stage and your midbass response.

Cheers.