what are your speakers again, dude you dont need a 4 thousand watt amp. but to give you an idea
http://www.woofersetc.com/index.cfm?...roduct_ID=3707
http://www.woofersetc.com/index.cfm?...roduct_ID=3707
http://www.woofersetc.com/index.cfm?...roduct_ID=4433
in order to have that much power in your car and for it to run efficiently you have to upgrade your electrical system, meaning good power wire not the cheap stuff, a bigger alternator, a more than one battery. its a money pit unless you are going to compete and win money. which in that case i would tell you to sell the accord buy an astro van and wall it off with as many fifteens as you can fit. use what you have if it works, if it blows then go and buy some new nice stuff.