[Elecraft] KX3 speaker: distortion from mechanical vibration?

[Don Wilhelm]

Andrew,

That small speaker - if driven to high volumes *will* distort - there is 
nothing that can be done about that.
As far as the mechanical vibration, that is quite another thing.
Look all around the speaker mounting plate - there should be a gap 
between that plate and the bottom cover.  Be certain you can drag a 
sheet of paper into the gaps - if the paper is tight, a bit of filing 
(or forming) may be in order to widen the gap.

If there is already an adequate gap, please let us know that too - 
Elecraft is searching for the source of this mysterious vibration.

73,
Don W3FPR

On 7/19/2012 11:15 AM, Andrew Moore wrote:
> My KX3's speaker audio starts to distort as higher volumes at certain
> frequencies. It's pretty clear that it's a mechanical vibration, and I can
> dampen it by doing things such as applying pressure to the left lever of
> the paddle, or gently pressing on the grille. I'm aware of the AGC
> threshold adjustment, but that doesn't appear to be the problem.
>
> I've tried adjusting the speaker mounting screws and blowing compressed air
> gently into the speaker to make sure there's no debris in there.
>
> Any other suggestions? Should be relatively easy to fix. Maybe a thin
> rubber gasket between the speaker and the enclosure would do it.
>
> I really like the internal speaker and would like to use it, as opposed to
> an external one.
>
> I love this rig!
>