** Shares of Ambertech AMO.AX rise as much as 46.7% to A$0.220, their highest level since June 12, 2024

** Audio-visual co expects FY25 unaudited revenue to exceed A$100 million ($65.96 million), compared with A$95.5 million posted a year earlier

** Expects second-half EBITDA margin to exceed first-half's 2.4%

** Forecast growth helped by delivery of projects in media systems and DLES (defence, law enforcement and emergency services) segments

** YTD, shares up 34.4%

($1 = 1.5161 Australian dollars)

(Reporting by Nichiket Sunil in Bengaluru)

((Nichiket.Sunil@thomsonreuters.com))