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

radio antique soviet woofer speaker 5gd3 vintage acoustics symphony old cases speakers retro 1960s 60s 70s helmholtz resonator threeway system fabric veneer plywood strut ussr lamp varnished music broadcast song melody sing reel to stereo singer musical wooden chart announcer listen audiophile loud recorder hit eavesdropping translation nostalgia audio speak