Either you have no earthly clue what you're doing, or you just **** at explaining. I'm pretty sure its a combination of the two.
So let me get this straight. You have a 4 channel, and it's running 2 6x9's, correct? Those 6x9's are on their own channels on the amp, which are bridged channels (1+2 on one speaker, 3+4 on the other), correct?
So where are you coming up with 210 RMS and 120 RMS and "wanting" power? Their RMS power rating is how much they can HANDLE, not how much they draw, or "want".
I honestly have no idea what you're talking about if I'm wrong.
I get an assload of drum kick from 6.5's.