WOW the Electro Voice Sentry's are in good shape exterior wise, if woofers and drivers for the mid and St-350 Tweet work it is a great sound system for church or small to mid size club. I worked with these back in the 70's, we used 36 of the folded horn Sub (16 per side) and modified a high frequency sub assembly made up of 1-mid horn you see with 4- St-350's 2-stacked on each side of the horn in a nice self contained case w/ lid. the name of the band was Aerosmith.