soviet ferrite speaker 2gd-40, in a wooden casing of an acoustic column. old soviet acoustics

car loudspeaker soviet ferrite speaker 2gd40 wooden casing acoustic speakers old acoustics sound audio technology bass music combined automotive tweeter builtin large twitter plastic auto hand cobalt nickel alnico soldering iron ussr flux joy stereo listening device door studio dolby element monitor tool basket textured grey assembling digital hole audiosystem player worker