Impedance load

Ok, here it is guys. After talking with a tech guy from kicker for a good 15 minutes I decided this. I will set the gains by ear!!!! YAH!!! What I learned from all this was simple. Screw that damn DVM. Heres what I did. I put in a CD that I know pretty well and set my gain like I have been doing for the last 6 years. After I set amp A to where I like it I put in the test cd, checked the voltage, and then unplugged A and plugged in B. With the test CD still rollin, I ckecked the voltage on amp B and set thatto the same voltage as amp A. turned everything off, made sure both amps were plugged in and off she went booming like an elephant giving birth to quadruplets. (thats sposed to signify loudness :) The delima I had during this today was the fact that without me noticing UNTIL today one of the subs wasnt even hooked up. This in itself was for one stupid on my part and for two a great help in gaining more SPL. DUH!!! In any case I will never try and set an amp with a meter again. Possibly with an Ossiliscope, that is if im lucky enough to find someone who has one who wouldnt mind me playing with it. Another thing I learned behind all of this is that if i were to tune the amp to the frequency of 50hz blah blah blah then my amp would only be tuned to that specific freq. Apparently amps produce differant voltage when they play different tunes or freq's. Now I dont know a whole lot about this, but if you want to know more call kickers tech line and ask for... well I better not say his name.

Stevdart, you were correct that I would resort back to my ears.

DYohn, perhaps there is a way to set the gain correctly the way you explained it, but for my purpose and lack of patience I didnt. In fact Im sure there is a way to do it that way, why else would JL say to do it that way, and many others... ya know. In any case it isnt the way for me. I am glad I went through the trials and triulations.... I got to learn a lil bit which is what makes it all worth it. I dont know what I would do if I didnt have this forum and you guys to help me out.

haemphyst, thanks man. I would like to know what you mean about the input impedance on my amp will never change. You mean the input I am getting from the deck?

As long as you're hapy and your amps aren't clipping, then cool.  Enjoy your system.

What haemphyst means about input impedence is it is determined by the electrical characteristics of the input stage on your amplifier and it is fixed.  You can't adjust it.  It is also not somethng you need to worry about in most consumer equipment.  When you mentioned this in an earlier post, it was a red herring and really has nothing to do with the process of setting the gain on an amp.