Do i need an equalizer???

[StereoInstaller1]

OK thanks...now one last question...
The ppi amp pushes 2x200rms bridged or 4x50rms.
Do you think it would sound better with the 200rms or with two seperate 50rms channels. I have to believe that they are pretty power hungry woofers since the components are rated at 180rms. Any further information would be greatly appreciated.

I thought we covered that? More power is not necessarily better power, but more crossover points adds much adjustablility.