I adjusted and this how I set the eq. Bass boost off and source adjuster normal. Subs are no where near loud. I have the electrical right. I have a mechman 270, 3 xs power d3100 in back and 1 d925 up front. Amps for subs are 2 DC Audio 2.0k. They are strapped at 2 ohms. Subs are PSI PF1 with high performance upgrades. Dual 1 ohm