Guitar cab prototyping part 4 (but it really should have been part 1, so watch this first!)

A historical reconstruction of the early hours of this moment of genius/madness* (*delete as applicable). Think more "Time Team"*** and less "Crimewatch"** (British viewers may need to explain this to everyone else). *** (Not to be confused with Maid Marian and Her Merry Men, to increase the nicheness of references). P.S. It's about our Barefaced AVD guitar cabs!