headquarters northamptonshire nn13 7be uk key people stewart tyler chairman founder products loudspeakers website www.proac loudspeakers.com proac limited is a british loudspeaker manufacturing company . the company was reportedly founded by stewart tyler in 1979 and registered on 09 05 1988 . the brand of proac was built on the reputation of his first loudspeaker manufacturing entity celef audio ltd. which was reportedly founded in 1973 incorporated on 10 09 1975 and renamed to celef audio international limited on 10 12 1985 . the celef name is no longer used for marketing but still appears to remain the legal and financial entity operating the proac brand . external links edit proac website a review of tablette 50 signature review of response 1sc at stereophile another review of response 1sc at audiophilia records of celef audio international limited at companycheck . operational as at january 2013 records of proac limited at companycheck . dormant as at january 2013 this technology article about a corporation or company is a stub . you can help wikipedia by expanding it . v t e retrieved from https en.wikipedia.org w index.php title proac & oldid 647214091 categories loudspeaker manufacturersaudio equipment manufacturerscompanies based in northamptonshiretechnological company stubshidden categories all stub articles navigation menu personal tools not logged intalkcontributionscreate accountlog in namespaces article talk variants views read edit view history more search navigation main pagecontentsfeatured contentcurrent eventsrandom articledonate to wikipediawikipedia store interaction helpabout wikipediacommunity portalrecent changescontact page tools what links hererelated changesupload filespecial pagespermanent linkpage informationwikidata itemcite this page print export create a bookdownload as pdfprintable version languages add links this page was last modified on 15 february 2015 at 07 48 . text is available under the creative commons attribution sharealike license ; additional terms may apply . by using this site you agree to the terms of use and privacy policy . wikipedia is a registered trademark of the wikimedia foundation inc. a non profit organization . privacy policy about wikipedia disclaimers contact wikipedia developers cookie statement mobile view