Fi SP4 18’s on DD M3b’s

2 18“ Fi SP4 fiberglassed and bedlined wall does 154 db with DD1 tuning on -5db tone 2 Digital Designs M3b at .7 ohms 5 Power 120AH batteries 320A Ohio Generator alternator smaller pulley 2 sizes smaller than stock belt 8 runs of 1/0 OFC Audiotechnix wire Toolmaker dual inputs Crescendo Audio 1000c4 at 1.7 ohms custom built active crossovers 8 Pyle Pro PMW8A 8“ midbass drivers 8 Pyle Pro PH-25 horn loaded supertweeters custom fiberglass door panels Viper 5901 security compl