references to primary sources . please improve this by adding secondary or tertiary sources . may 2011 learn how and when to remove this template message pmc industry loudspeaker manufacture founded 1991 1991 founder peter thomas adrian loader headquarters biggleswade united kingdom products loudspeakers website http pmc speakers.com the professional monitor company limited better known as pmc is a british loudspeaker manufacturer established in 1991 . the company s products are widely used within domestic settings professional studios and other hi fi applications . the company is one of a handful to have won an emmy award in recognition of its contribution to recording excellence . 1 contents 1 history 2 technology 3 products 4 references 5 external links history edit pmc was formed by peter thomas previously of the bbc and adrian loader previously of fwo bauch an audio distributor in 1990 . 2 they produced their first loudspeaker the bb5 a which was a large studio monitor . the first production versions were sold to the bbc and metropolis studios . the bbc still use the bb5 at the maida vale studios 3 and uses other pmc speakers in other locations as well . 4 metropolis now has around fifteen citation needed of them installed at its recording and mastering facility in west london . 5 notable users of the bb5 include prince 6 and stevie wonder s wonderland studio . 7 pmc was awarded an emmy award for their recording work . 2 technology edit pmc uses advanced transmission line technology in all of their loudspeakers . this is a means of loading a drive unit in a cabinet in such a way as to absorb the unwanted frequencies that radiate from the rear of the speaker driver . the speaker is mounted at the end of a folded line within the cabinet which is lined with foam of varying absorbency . the lowest frequencies are allowed to pass through the line and emerge in phase from a vent on the front or rear face of the cabinet in effect acting as a second bass driver . by absorbing the unwanted bass frequencies the upper bass and midrange are not masked by harmonic distortion . the atl design enables the speakers to produce higher sound pressure levels and deeper bass extension than is possible with similar sized speakers using either ported or sealed cabinets . citation needed the speakers can also be played at lower volumes without any loss of frequency response . 8 products edit pmc manufacturers products for both hi fi and studio use . the hi fi products originally grew out of the studio designs . the company also makes a range of on wall speakers called the wafer series . these also use the folded transmission line and are voiced identically to the traditional box speakers . references edit http pmc speakers.com about pmc history a b award winner pmc . extreme audio . retrieved 21 may 2011 . bbc maida vales 2 3 4 . key clients . pmc ltd. retrieved 21 may 2011 . bbc wales chooses pmc speakers for monitoring dr who and torchwood . what hi fi . 20 june 2008 . retrieved 21 may 2011 . metropolis mastering . key clients . pmc ltd. retrieved 21 may 2011 . prince . key clients . pmc ltd. retrieved 21 may 2011 . wonderland . key clients . pmc ltd. retrieved 21 may 2011 . terry knight host curtis ellzey videographer editor 22 september 2008 . pmc s advance transmission line speakers . engineering tv . retrieved 21 may 2011 . external links edit official website retrieved from https en.wikipedia.org w index.php title pmc ltd. & oldid 734792824 categories audio engineeringloudspeakersloudspeaker manufacturershidden categories articles lacking reliable references from may 2011all articles lacking reliable referencesall articles with unsourced statementsarticles with unsourced statements from may 2011 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 16 august 2016 at 19 15 . 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