ASMP-
Realize that the Innovatronix is only rated for 1000 watts it is I beleive (I have one that I use with my Acutes, but never "full up").
So, you'll be limited to about 40% of the regular output of your Pro6/Pro7 packs....
The better alternative if you're wanting that much juice is one of the Honda 2000 put-put genny's. They're awesome little guys, and they're man portable. (Or, if you need more power, step up to the 3000, though it's a bit more cumbersome due to size/weight)