EAW (stands for Eastern Acoustics Works) 18" subwoofer for theater or home (!!) low frequency reinforcement.
Capable of handling 1000 watts of power.
Inside is the Italian-made Ciare 18" woofer. Cabinet is in good shape and could be redone with veneer to transform from sound reinforcement / theater look to massive pretty home subwoofer look.
Tested and working properly.
I also have the JBL BX63 to make this an (inexpensive) version of JBL's B460 subwoofer system.
The BX63 would be an additional $300, and of course you will need a big amp to drive this monster.