On 4/20/2012 7:29 PM, Ron D'Eau Claire wrote: > When the cone moves forward on a bare speaker, the air pressure created > simply moves around the edges and fills the partial vacuum created behind. > The end result is no sound pressure waves leaving the speaker. The only > waves created are those high enough in frequency that the outer part of the > speaker acts as a self-baffle, leaving only a small center portion of the > speaker to produce a sound pressure wave.
And Ron has just described the plastic-cased "kitchen radio" of the 50's that my Grandma listened to "The Guiding Light" on. No lows, all highs. 73, Fred K6DGW - Northern California Contest Club - CU in the 2012 Cal QSO Party 6-7 Oct 2012 - www.cqp.org ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
