John Warren Posted February 13, 2002 Share Posted February 13, 2002 Patent for the bass-reflex enclosure. Quote Link to comment Share on other sites More sharing options...
John Warren Posted February 13, 2002 Author Share Posted February 13, 2002 The "Orthothonic Reproducer" (1919) Quote Link to comment Share on other sites More sharing options...
TheEAR Posted February 19, 2002 Share Posted February 19, 2002 Neat stuff you posted.The "Orthothonic Reproducer"lookis like one of the early folded horn acoustic amps. TheEAR(s) Now theears Quote Link to comment Share on other sites More sharing options...
mike stehr Posted February 20, 2002 Share Posted February 20, 2002 folded horn acoustic amps. What the Hell is that?! Was this something Fred Flintstone Jammed on? You mean Folded Horn Loudspeaker? Quote Link to comment Share on other sites More sharing options...
lynnm Posted February 26, 2002 Share Posted February 26, 2002 No I think he means acoustic amp. Remember those old gramophones had no amplifiers in them so the designers used all manner of horns coupled mechanically to the throat of the horns to increase the small amount of sound generated on the pickup's diaphragm. I once had an old gramophone in my second hand store that could play so loudly that conversation was difficult anywhere within 10 feet. ------------------ It is meet to recall that the Great Green Heron rarely flies upside down in the moonlight - (Foo Ling ca.1900) Quote Link to comment Share on other sites More sharing options...
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