[Elecraft] K3 Speaker buzz - But which external speaker ?

[drewko]

I am using a pair of MFJ-281 Cleartone speakers with my K3. 

Some say they are fantastic; some say they are junk... But they work
well enough for me for CW and SWL. They peak around 600-700 Hz. I
would prefer a little lower, 400-500 Hz, but they work ok in that
range. And no buzzing anywhere that I have heard. They also look like
they were made to match the K3.

As for RF, I  have had no issues with them. The lead-in of my end fed
wire antenna is inches away from them (though I do only operate 10
watts output).

73,
Drew
AF2Z


On Tue, 06 Nov 2012 20:18:45 +0000, Iain G4SGX. wrote:

>Hello,
>Well after 18 months the buzzing of the K3 internal speaker has  
>reached annoying proportions.
>For a while it faded after switching on for 10 mins but now its a  
>constant resonance at 580 Hz. Great for CW! (not)
>Because of the above I am sure its because the coil has shifted in the  
>speaker slightly rather than any sympathetic resonances from the case.
>
>I'm not complaining, I understand if I contacted Elecraft I am likely  
>to get a replacement speaker sent out, (Its a well documented 'extra  
>feature') but really haven't got round to it, nor am i likely too,  
>well down the list of priorities!
>Will probably order it along with a set of CW filters when I need them.
>
>I'm REALLY after recommendations for an external shack speaker, or is  
>any good HiFi speaker good enough? I would assume some RF shielding  
>and good high end sensitivity was more of an issue.
>
>Yours.
>Iain G4SGX.
>Happy K3 Owner :)
>______________________________________________________________