Early Black Widow woofers with metal dust caps 
 Super Structure/Focused Field Geometry: This design utilizes a large magnet structure to create a high-efficiency magnetic field. The pole piece design maximizes magnetic energy in the gap, enhancing sensitivity, reducing distortion, and improving power handling.
11“ x 5“  metal horns
1 inch compression drivers
I’m located in downtown Albany if you’d like to come listen to them