I am currently running a Kicker L7 12" on a Directed audio 600d amp. Will a ported box and a 750 watts rms amp sound much louder. I am after heavy bass (spl).
Plus i have 2 6x9 which are powered from my HU, (Alpine 4 x 60 watts). will adding an amp to them make the sound much different. I currently have phillips 200watts 93 decibels. I want new 6x9s which ones can i get the max loudness from and the amp to push them.
750w probably wouldn't be much of an improvement, but going ported would be, if you have the space. And yes, adding an amp for your 6x9's will make a big difference. That Alpine really only provides around 20x2 watts rms, if that.