case of acoustic vintage system amphiton 35ac-018 during restoration. grinding and painting

music refurbished painted speaker system amphiton 35as018 soviet vintage powerful acoustics brown paint authentic bass cobalt acoustic speakers outdoors 35 watts musical old radiotehnica s90 midfrequency ussr veneer repair 90 isolated ancient membrane nominal sound spool reel audiophilia reflex subwoofer pattern wood dynamic classic volume little decoration metal device