Thanks Guys for responding...(Elliott and Silas)
I been mixing for quite some time and am definitely smart enough to know that the JBL sr4719x is a Rock N Roll type Box, front loaded normally was the first clue.
The power ratings I got from the MPX1200 amps was directly from their manual. (which I included) I never actually took the amp out, put a dummy load on it and actually measured actual power consumption with a meter, I do know how to do that though. I know the amps are a lil archaic but they are what I have for the system. Doing Bands on them in 250+ small inside clubs is plenty loud, but recently got toted into doing DJ stuff and outside. (oye vay)
So as for the actual Setup, each 4719x is a 4ohm box. Paralleling 2 boxes makes it a 2ohm load. I have 2 of the MPX1200's. I originally was using just one mpx1200 running stereo. (so technically 2ohm per channel). I was clipping with low end so I turned it down...don't need a square wave to toast my drivers. The low end was ok for rock music...again...but just wasn't near what I needed for the DJ. (Amazing the Manual says PERFECT for the SR4719X Subs) So. I took another MPX1200 and bridged it mono. So now I have 2 MPX1200's MONO...each amp driving 2 4719s (2ohm load). The amps seem to be handling it and did do OK...but still, I know when blood is coming out of a turnip. Sooo....I do have a Macro 5002. I am likely going to put that on the subs and see if that beefs up the low end while running that in Stereo so I got 2 boxes a channel. I think the Damping Factor alone will tighten up the low end but I know I need more subs and amps. That is a given.
Now, for the DSP. The DSP actually controls the Limiter settings for the MPX1200 amps, so TECHNICALLY it does control the Sub output. If your processor isn't letting out the voltage, the amp can't do anything. P=IV...No V...No power. Not being sarcastic, just I went to college for Electrical Engineering and still remember a few things.
I really do appreciate both of your guys input. Me being one not living in the world of Tekno Music definitely has opened my eyes in the lows of lows. I wish I had a couple of Servo-Drive woofers and say ...take that you Baby Bottle Glow Stick Waving Kiddos! LOL...What is actually really funny is that at the last show, about half of the Kids dancing around all had EAR PLUGS in...then they keep telling me to turn it up...Ummm...something doesn't seem right here. Some of us Old Farts doing sound, yes I am 38, think if its too loud, turn it down. Ahh well. Any more input or comments are appreciated..Thanks again, take care my friends...