Question To AnyOne That Can Help!!!

Hello Dear Ser,
I wanted to ask somthing about car sound systems.
I have installed two JBL subs with 1000 WAT for each, but i was wandering weather if a 600 waht JBL amp. will be inough for them and if not what is the best amp. that i can use for the two subs, also even if the 600 WAtt amp. is good but you still know a better amp. for them pleas let me know.
MANY THANX IN ADVANCE FOR YOURE HELP

What kind of JBL subs are they? what amp do u have on them now? what amp is the "600" 'waht' amp?

Wow...... um give us model numbers please "1000 watt jbl sub" means nothing to me

Will yes I’m sorry I should have included that information.

The subs are: GT4 high power. ( hope its the moddel number you need)
What I have installed now is an JEC (ca3244) 400 WATT but not for the subs its for two Kenwood speakers 400 Watt each.

The subs that I have are not working yet just installed but not working, waiting for the amp.

About the JBL amp I searched the net but did not find the one I want,
Any way it’s not the black amp nether the silver one it is the orange colored amp.
I have to go to the shop again to ask about its model.
Thanks again for your care.