Got this truck through some horse trading... current setup was tested to do 154.3 dB @ 61 Hz with two Z15s and a clamped power of 5000 watts total. I want a more efficient setup so I am tearing it all down!
Some pics of the current setup with the cap off and starting to tear down :
Old wall has a great baffle - 7 layers thick - but the outside is too thin. It is one layer of MDF with super dense foam sandwiched between that and a thin layer of wood (I had that peeled off before the pics). It does have concrete above the front chamber, though, so that is not too bad.
All in all I think it could be better so I am going to rip it out!