How Bad Did Ancient Speakers Sound?.
8:40
Vintage radio speaker, can I get it working?
27:23
STC Electrodynamic Speaker Field Coil Rewind - 1930s
8:06
OMA on the RCA Ubangi system
9:24
Vintage Film making, SOUND production, recording, editing, 1950's technology for movies, Aaron Stell
12:46
The Synergy Horn, What makes it Unique?
15:55
Which Sounds BEST? Concentric/SourcePoint VS Horn VS Standard HiFi Speakers.
11:27
Blowing VINTAGE Speakers
17:46