Mine is Kaman period, pre Gibson. I'm not entirely sure but I think Kaman dropped the race stripes and Gibson brought them back. The guff with my cab indicated it was a new design, the ports go through the grill 6" deep.
Woofer tech has advanced out of sight but it still holds its own. Gives one BL a blue fit when I bring it. He must have Alzheimer's, forgets my amp has a volume knob every time.
Team Trace Elliot #1, IWNBARMPB Prezident, Mediocre Bassist #399, Old Basstard #86, PBBBC #2