12" woofers designed for high excusions and hand made in USA by the original designer in 2002.
They have dual 8-ohm voice coils, so you can run them in parallel to get 4-ohm or in series to get 16-ohm.
Four of these are available, but only three of them are fully functional. The fourth one has the voice coil stuck to the pole piece due to the glue on the voice coil melting over the years. You can re-cone this one or find a way to un-stick the glue.
The price is for each unit that's functional. If you buy all three, then you can have the fourth non-functional one for free.