Darn it. I hit the wrong key. Continuing: I understand that it's a good idea for protection. I understand the different ratings for overall load/draw. My confusion is in what they call STAGE 3 or STAGE 4. I surmise that perhaps this means that a stage 4 has more levels of filtering or protection. Y/N (?)

Considering a capacity of 1800 watts, which the outlaw 7 x 200 and 5 x 200 are max rated, I guess one would want something like the 3500 which has a higher rating. With the other stuff plugged in I guess you would want it.

I'd sure like to hear from someone with some info in this stuff. Thanks in advance
nfaguys----(the newbie)