WHAT IS AN EXCITER? AR-50 is a weatherproof exciter for music and voice reproduction. An exciter is a loudspeaker without the frame and cone. Exciters work by replacing these components with a rigid surface which vibrates in order to create sound. Very robust and weatherproof version thus suitable for outdoor applications and in extra dirty conditions. High power capability of 50 wmax. Supplied with screwable mounting plate. Depending on the mounting surface, very wide bandwidth reproduction with amazing volumes.