Ok i'm new blah blah 10ers.....so let me tell you my setup JBL 1201.1 @ 4 ohms so about 740 watts...Power hx2 12'' dual 2 @4 ohms with a yellowtop up front. Now looking at this video I see how they tuned a amp for 400 watts if i want to tune mine towards my max rms watts at 4 ohm what tune...