I have in my car now:
12'' pioneer 1000watt sub
US Audio 1000watt amp
6'' pionner speakers in parcel shelf
4'' pioneers in front doors
and a 2008 Pioneer DEH-P6050UB head unit.

I want:
2-3 x 1200watt JBL 12'' subs
2 x JBL 6x9's
and keep my head unit and front door speakers


so what i need to know is what size jbl amps should i go and what other equipment would i need?

Just wondering if you have an ef why you have 4" front speakers? not 6, or was that a typo.

yea mate the 6's lol woops my bad