University Sound 30" ELECTROVOICE EV 30W PATRICIAN 30 INCH WOOFER 30W They were rated at 104db/1w and rated to take 60 watts rms and 150 peak Three inch voice coil. The cone is pressed styrofoam. I built this in the mid 90s in the LA nightclub. They didn't deal to well with pounding house music. Lasted about a year.
Update 2010, We installed a set of folded horns inside these cabines to bring them back to life. Here
15 years later I went back to remove the remaining driver. They were taken out of use 2 years after built. The driver has several holes but I may be able to patch it. The cabinets became the front part of the stage in a large nightclub.