10 inch Alnico magnet acoustic suspension woofers, KLH 17 tweeters (replacing what looked like Peerless, but didn't sound like it). The cabinets are gorgeous, just sanded and oiled this afternoon, very retro textured natural grills. They sound really good, and I'm glad I had a great pair of tweeters from another 2 way 10 inch design of similar vintage. These compare well to KLH 17s. Someone should buy these!