Rear speaker box (my own idea and it's removable!): Genuine Marshall MG412A (angled front) 4x12 speaker cabinet, loaded with 4 Atlas 12CX, 12", 250 watts (@ 8 ohms) speakers. Cabinet rewired for stereo, speakers paired (upper/lower) and Switchcraft stereo 1/4" locking phone jacks are spliced into the OEM wiring harness to run off the rear door speakers. Speakers pump out 125 watts @ 4 ohms apiece / 250 watts @ 4 ohms per side, 500 watts @ 4 ohms total output for the cabinet. Total"Old School" sound!I named this cabinet, "Mr. Scary" (after Dokken lead guitarist George Lynch's guitar solo)!