hifi engine

Manual Library / Quad

Quad The First 50 Years

Advertising Brochure

add a review add a review

Quad The First 50 Years


A potted history of Quad (Quality Unit Amplifier Domestic) from 1936-1956 and featuring products from the early Acoustical Manufacturing Company, through to Quad 44 and 405 amplifiers.


22, 33, 44, 303, 405, C25, Corner Ribbon, ESL, ESL 63, FM3, II Power, II Pre, QA12/P


brochure   English -

If you have any problems opening files please read the download FAQ. All files are provided under strict licence and reproduction without prior permission or for financial gain is strictly prohibited.

If you have additional documentation please consider donating a copy to our free archive.


This website is not affiliated with or sponsored by Quad. To purchase The First 50 Years spares or accessories, please contact the company via their website or visit an authorised retailer.