Gain setting on alpine pdx 12 amp NEEDING FIGURES DOUBLE CHECKED

[337ram 10+ year member]

Ok I have 2 alpine 12" DVC 4ohm type Rs 600rms

The amp is alpine pdx its either 2 or 4 ohm 1200rms amp

going to be running subs at 4ohm, series to get my 4ohm load

Head unit is pioneer 4200 4v

the figure i am getting doing the math is 69.3, is this correct it seems high, is this even possible on stock alt, going to do big 3 next week

Yes this is noob question, just this is my 1st time doing subs at 4ohms, just want to make sure I am right on this

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[VisceralSound 10+ year member]

Thats what I got

1200*4

sqrt(4800)

(69.28)

 

[337ram 10+ year member]

TY just wanted to double check, like I said first time at 4ohms always did 1ohm amps/subs before