Quad customers world-wide demonstrate an exceptional level of interest in the products and technology we use. This has spawned a number of web-sites which provide a wealth of information on Quad, both old and new.

Hyperlinks for these sites are provided below. If you have a site you think should be included in this listing then please contact us here.

Quad world - A comprehensive site with informative chat forum.

Quad ESL - Sheldon D. Stokes site on ESL-57

Quadesl.org - Very detailed site with archive information and pictures

The ESL Circuit - Detailed coverage of electrostatics.

M.T. Audio Design - A site full of discussion about the famous ESL-63

Tritet Audio - Very nice site from a recording engineer. Lots of technical knowledge on vintage Quad equipment. Keep your old gear alive.

ESL-57 Hotline - Regularly updated site devoted to the ESL-57

http://www.euronet.nl/users/temagm/audio/esl63.htm - ESL-63 interest pages

EnjoyTheMusic.com - General hi-fi interest web-site, show reviews etc.

http://cf.geocities.com/quadfranco/  - Quad fan site. Check it out.

http://www.audio-nirvana.com - Section on ESL 57

http://perso.wanadoo.fr/adajls/quad4ever.html - Site about modifying and refurbishing the 405 and 405-2

http://www.hifisounds.co.uk - Website detailing the rebuilding and restoration of some Quad IIs