Heres the vid description from youtube...
Met up with Tim AKA DCbassboxer here on youtube to do some demos and get some footage. This thing gets down for sure, I believe it can burp a 146 and does 143-144db 30sec average on music.
System consists of:
2 dc lvl 4 12s with lvl 5 coils
dc 2.0k @.5ohm
2 deka batteries
all ofc power wire
alpine 75x4 amp
jl audio c3 components
alpine cda 117 head unit
Check out his channel here : DCbassboxer's Channel - YouTube