an antique soviet woofer 5gd-3 from vintage acoustics symphony

1960s 5gd3 60s 70s acoustics antique archive award broadcast cases entertainment fabric fm funky helmholtz home interview lamp listening live mass media music old plywood pop radio reel report reportage resonator retro sing singer sound soviet speaker speakers spy strut symphony system threeway to ussr varnished veneer vintage voice wave woofer