DrBones,
These subs are so old (30 years-plus) I don't remember seeing them, although the model number rings a bell (from audio-video equipment directories I edited in that time for Sound Canada magazine).
BlueJay's advice is solid, but since there are no labels, you should either remove the rear panel of the speaker or the woofer, whichever is easier, and trace the wiring. In most speaker wiring schemes, the black lead (sometimes it's white!) is generally negative and the red lead is positive. Find the two leads that go from the input connections to the terminals on the driver. There may be an internal passive crossover. The input leads would go from the external connections to the crossover, then to the two terminals on the woofer. There may be a second pair of wires from the inside of the input connectors to the second set of connectors. The latter would be used to bypass the crossover and power your main speakers with a full-range (unfiltered) audio signal.
As Blue Jays advised, keep the positive/negative wiring polarity consistent.
At some point Ian may see this post and remember how these things are wired.
Regards,
Alan
