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1966      Len Davis invents the world’s first telephone balancing unit for use on BBC Radio’s first phone in programme ‘It’s Your Line’.

1966      Len Davis leaves BBC designs department to concentrate on public address designs and equipment manufacture. Company called Glen Sound Services

1967      Design of audio mixers for use in schools

1969      First Glensound design for the BBC – a distribution amplifier for Prince Charles’ investiture

1971      First unitised desks designed and manufactured for the BBC

1973      MX6 range of mixers first designed and manufactured for BBC

1974      DK2/21 popular monitoring & output unit made for BBC

1977      MICR (Mobile International Control Room) specialist commentators’ equipment built for BBC

1978      Glen Sound Services becomes Glensound Electronics Ltd

1980      Worlds first assignable mixer designed & manufactured for BBC Outside Broadcast.

1983      BBC mobile studios designed & installed

1984      Coaxial Commentators equipment designed for BBC for use at Commonwealth Games in Edinburgh Scotland in 1986

1986      Gavin Davis joins Glensound

1992      Design & supply of broadcast & sound enhancement for House of Commons

1994      Introduction of the World’s first portable battery operated ISDN Codec

1994      Design & supply of broadcast & sound enhancement for House of Lords

2001      Design & supply of broadcast & sound enhancement for Greater London Authority

2002      Design & manufacture of 600 Commentators Positions for football World Cup in Korea and Japan

2003      AES47 equipment designed & supplied to BBC

2004      Popular stand-alone commentary system type GS-CU001 introduced

2005      Len Davis semi-retires and Gavin Davis appointed Managing Director

2006      Intelligent PA amplifier designed for installation in all HSBC branches

2006      New GSLC intercom system designed and supplied for BBC local radio

2007      Broadcasters’ mobile phone introduced

2008      Eight thousandth ISDN Codec sold

2009      The world’s first IP controllable digital commentary system, GDC 6432, is launched

2010      First stage delivery, of the next generation of the Glensound’s Meeting Room Audio System delivered to Committee Room 2 at the UKs House Of Lords.

2011      The world’s first hybrid commentary and intercom unit, the COIN GT-013 introduced in partnership with RTS/Telex

2011      The world’s first digital stand alone commentary system, The Talent Box, launched.

2011      The world’s first broadcast HD Voice mobile phone range launched.

2012      Glensound win the IABM Award For Excellence In Design & Innovation for the GS-MPI004HD HD Voice Broadcasters’ Mobile Phone.