American DJ Pulsator

Very Rare unit from American DJ.  This is the Pulsator unit.  The unit features a 12 volt, 100 watt EFP - MR 16 lamp located in the center.  The light emitted from the lamp goes through a pin block, through a convex lend then onto a rotating dichoric rotating prism.  The prism has a few mirrors located in a 180 degree arc so the output is always being inverted for a more dramatic effect.  The reason for the pin block is with the lamps focal length it focuses only the center 'Spot' beam making a concentrated beam of light similar to a spot.  The fixture has a sound active circuit located on a small PCB just under the rotating dichro prism for sound to light operation.  Great classic made in????