On Jan 25, 12:31*pm, John Byrns wrote:
In article
,
*AB9GO wrote:
Speaker designed for use with amateur and two-way radio, shortwave and
scanner listening.
http://www.soundssweet.com
Look at how it is constructed and buy the parts fromwww.partsexpress.com
.
Here are reviews from hams that own this speaker:
http://www.eham.net/reviews/detail/2754
I don't know if I would trust that speaker to "sound sweet", it is a
"tuned port, bass reflex speaker", and those tend to have a peaky
resonant bass, not a sweet bass sound. *They probably used the "tuned
port, bass reflex" because the box would have had to be larger than
their target size otherwise.
How much bandwidth would a "Ham" speaker be expected to cover? Perhaps
the same as that required by basic telephony (300 - 3400hz)? Less?
Wiki gives:
Soprano (240 - 1170 Hz)
Mezzo-soprano (220 - 900 Hz)
Contralto (130 - 700 Hz)
Tenor (130 - 440 Hz)
Baritone (110 - 350 Hz)
Bass (80 - 330 Hz)
And Ham Radio ain't nohow opera... harmonics and overtones are
certainly less of an issue, perhaps? And no need at all to reproduce
basso-profundo notes for sure.
Looking at that information, things get a bit easier, perhaps?
Peter Wieck
Wyncote, PA