You are looking at an extremely rare "ALTEC A5 VOICE OF THE THEATER" Speaker System. this A5 system became one the best Large size industrial model speaker of the time. This is absolutely the top of the line speaker system ever created by ALTEC. Speaker Units(Driver/Horn): 288 RWB Early version 24ohms / 1003B 10 Cel Horn I have posted a youtube clip to demonstrate the functionality.
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