The Reference Handbook of Speaker Systems Yamaha mid 70s Book
"New old stock" in excellent condition. Not a sales brochure (it doesn't even detail Yamaha's own products) - a serious text book published by Yamaha in the mid 70s detailing all aspects of speaker design, manufacture, specifications and even how to shop for speakers. Well written, and with a myriad of illustrations explaining concepts. If you're left bewildered by all the terminology surrounding speakers, interested in learning more about how they work, or designing your own, or even just