t’s 1972. A Soviet surveillance microphone preamp has made its way west thanks to a courageous defector. The nascent, nefarious, and invisible Caroline Corporation obtains it and converts it into devices for military psychoacoustic special operations, then covertly delivers them to legendary users with fame and influence for evaluation.
Decades later, the Corporation’s hilariously neglected “Guitar Company” satellite office, blissfully unaware that their parent company has dissolved decades earlier, discovers the schematic and parts specifications. They source some discontinued Russian “unobtanium” diodes and recreate its special flavor.