Fanon,
I would say the back is the way to go. I just replaced the amp in my EP500. It is very quick and easy to get into the sub from the back. There are 12 allen head screws to take out. First remove the power cord and all other imputs. Take out the 12 screws and if amp appears stuck gently grab onto the bananna plug imput terminals and lift up. Amp will come out. You will see that the back of the amp is enclosed by plastic, but you will find a black and a red screw terminal. Make sure the wires are tight on these terminals as well as terminals on the back side of the driver which you will be able to easily see.
Good luck,
Rvrrat
