Impedance load

Can someone help me make sure I got this correct? I am trying to determine where I should set my gain at on my amp and Ill be using a cd with a sine wave 0 db and 50hz. What im trying to figure out is my impedance load per channel. On my kicker spec sheet it says the input impedance is 22k ohm. Input sensitivity is 150mV-3V- RMS. Now if I bridge the amp dont I have to drop the impedance load down 1/2? So this would mean I want to match 11ohm right? I think I might hve this all wrong. The kicker guy I talked to said I should get the volt out on my deck and match the amp to it. However the JL audio tutorial is telling me something a tad different. Someone please help. If you need any more info let me know and Ill get what I can.

As always Thanks

Ok i think I might have somewhat of a understanding.

 E=(P*R)^.5

I have my subs hooked up at 4 ohm bridged mono to the amp. this means Im producing 360 watts RMS. Roughly.

so (360*2)^.5= 26.8  (each channel seeing a 2 ohm load)          or is it                      (360*4)^.5=37.9     <--- (this is all info i got from a previous post.)

And if this is the correct way to do it then why'd the dude from kicker tell me to check the voltage on my rca's and then match the amp to it. (ex rca's from deck produce 3 volts, so measure what the voltage is from the amp to the speakers and match it to 3 volts. given the head unit is at 3/4 and all filters etc are off.)

Just have fun with it, and when your finally all done, you'll adjust that gain by ear, I promise you that.  I tried the same thing, got some advise that because the speaker has a different ohm resistance to each and every frequency, you would have to know what that resistance is.  I found that 50 Hz came up to the limit of volts really fast, meaning 50 hz plays louder than most of the other freqs.  After setting the volts to the limit at 50 Hz, then testing the voltage while playing regular music, I found it to be quite low.  So I put the DMM away and set it by ear.

stevdart, do you know which one of the three ways i gave is correct? if all three are correct which is the best other than your ear.

look into getting a Fluke Scopemeter... then you can easily check when it begins to clip... use a test disc with a 400 cycle or 1 k test tone and you can actually watch what is happening while you are turning it up..... you'll certainly SEE when it begins to square wave on you....

you can also use Sencore's Power Amplifier Analyzer PA81... although they are kinda pricey as well... ( last one i bought ran me around $3000 CDN )