Check the listing for details. Marantz Model PM451, PM551 Stereo Amplifier Service Manual 32 Pages. Condition: Brand New. Listed at 12.00 USD. Marantz Model PM451, PM551 Stereo Amplifier Service Manual 32 Pages See other picture or other pictures for table of contents. FYI: Some of the schematics maybe difficult to read due to tiny print. New reproduction of manual, Printed in black and whiteGlossy protective cover front Heavy card stock front and back covers.Comb binding8 1/2 X 11" format, lay flat when openMade in the USA If you are looking for a hard to find manual or parts manual please let me know. I have a large database and have only listed a fraction of thus far.If you are unhappy with your purchased in anyway please contact before leaving feedback. I would much rather send a replacement or a refund than have an unhappy customer. Things happen. Lost in the mail is a common problem. Sometimes tracking doesn't update in the progression of the mail chain. I will be happy to work with you.