ISE 2014: Tannoy Shows Its Improved Range of Prestige GR Series Home Loudspeakers February 10, 2014 | Home / February 10, 2014 rave-video / ISE 2014: Tannoy Shows Its Improved Range of Prestige GR Series Home Loudspeakers ISE 2014: Tannoy Shows Its Improved Range of Prestige GR Series Home Loudspeaker