hi guys, im using this calculator http://www.caraudio911.com/tutorials/GainSet/voltage.htm to get my gains all set up on my truck, and im getting different numbers. i have 2 sundown saz1500-ds strapped, and 2 d2 fi audio BTL 18s in my s10 can someone help me out on getting these gains where they should be? also i metered it the other day just setting the gain by ear and it did a 146.8 legal. im getting 2 more sundowns down the road, i want to be in the 150 club! thanks for your help in advanced,