[Elecraft] K3s Internal Speaker

[ac5p at sbcglobal.net]

I have an older K3 and a spare speaker (part #E850300).  Its hard to imagine flange being bent with little 4-40 screws, BUT, in my assembly manual p52, last step above Figure 74,it states in BOLD lettering, "Do not tighten the screws enough to bend the speaker flanges!"   
IF this were not an issue sometime in the past,  one wonders why such a warning would be stated in bold letters?     Otherwise I find the little speaker to be as Wayne describes in his reply.   Steve could you really be the first out of so many thousands to actually bend the flanges?   
73,MikeAC5P    


    On Saturday, December 5, 2015 2:11 PM, Wayne Burdick <n6kr at elecraft.com> wrote:
 

 Hi Steve,

Sorry to hear about this. I've never heard this complaint before (and there are tens of thousands of these speakers in use, in both the K3 and K3S). The frame should not bend if the correct fibre washers are used and the hardware is not over-tightened. I'll check with our manufacturing lead to see if the wrong ones were shipped.

I'll also check with our tech writer. Perhaps the instructions could be clarified. 

The internal speaker is certainly of high quality, so I hope you can get one installed (I'm sure customer support will send another, given your issues). It has excellent sensitivity (95 dB SPL, due in part to the very large shielded magnet) and a wide frequency response range. Given the large top cover mounting surface, the internal speaker is quite loud, with a low natural resonance point.

73,
Wayne
N6KR

On Dec 5, 2015, at 11:59 AM, Steve Ellington <steven4lq at gmail.com> wrote:

> I've made 2 attempts to install a speaker in my new K3s but they bend like
> butter and distort. I was very careful to use the fiber washers and to not
> over tighten the bolts. The frame of the speaker can bent with 2 fingers!
> I've never seen such a flimsy speaker.
> 
> I had a brand x speaker in the junk box that worked great but I wanted it
> to be original especially since the speaker is necessary to hold down the
> sub receiver's shield. The junk speaker worked fine while I awaited a
> replacement but the new  replacement did the same. Basically it is junk.
> I wonder if they washers they sent are too thin?
> 
> I never use the internal speaker anyway but feel like it should at least
> work.
> 
> Has anyone else noticed this? Otherwise I love the K3s!
> 
> Steve N4LQ



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