[Elecraft] Motorola Speaker VS Bookshelf Speaker ?

[JimWMiller@aol.com]

In a message dated 8/3/2002 11:09:41 PM Eastern Daylight Time, 
rondec@easystreet.com writes:


> If by "bookshelf" speaker you mean the type normally sold for small
> hi-fi's, I have found those to be very inefficient...
> 
> Also, the communications speakers are baffled for voice frequencies with
> pretty strong roll-offs below 300 Hz and up above 2000  Hz. The ones I
> have worked with have a very broad but pronounced "peak" in the bandpass
> around 800 Hz. 
> 
> ... I could not find any difference in the mobile speakers sold by 
> Motorola, E.F
> Johnson, GE or Standard, the four most "popular" manufacturers in the
> business at that time. I had the impression they were all buying them
> from the same source in appropriate company colors."
> Ron AC7AC
> K2 #1289
> ===================

OK if the communication speakers are better than bookshelf speakers but newer 
also usually means better with respect to speakers.  Much progress has been 
made in the last few decades.  Are there any modern day equivalents of the 
Motorola Speaker that are available new ??? 

Also a peak at 800 Hz may not be the best thing for speech. Wouldn't a flat 
response from 300 Hz to 2.4 kHz be ideal for SSB?

73,
Jim WA2UMP
K2: 2679




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