[Elecraft] K3s Hearing low level rear speaker audio with SPKR+PH no and low AF set

[Ken Wagner K3IU]

Thanks, Jim:

I should have mentioned that I am using 
non-amplified speakers.

73, Ken K3IU
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

On 3/7/2017 4:09 PM, KK1W wrote:
> You might try tapping "1" when in CONFIG>SPKR+PH to display
> "PH.R SW-". That fixed mine so that when SPKR+PH was YES,
> plugging the phones in the REAR phone jack caused the
> external speakers to be muted. If the PH.R+ was selected,
> the speakers did NOT mute when the phones were plugged into
> the Rear Panel, but did mute when thephones were plugged
> into the Front Panel.
>
> 73,
> Ken K3IU
> K3s #10691
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>
> Thanks for the tip Ken. Unfortunately that was already set to PH.R SW-.
> Changing it to + definitely didn't mute the speakers!
>
> The issue we're seeing is the speakers are not completely muted. You can
> still hear audio coming out of the speakers, nowhere near as loud, but it's
> still there. Unlike the built in speaker which is completely muted under the
> same circumstances.
>
> You did prompt me to try a regular speaker in the SPKRS jack
> (non-amplified). Interestingly there is NO audio heard when SPKR+PH = YES.
> This leads me to believe there is 'some' audio at the jack, enough to be
> amplified. Why, that I can't answer, maybe something to do with input
> impedance of the amplified speakers?
>
> Anyway, just another data point in something that's not a big issue but
> makes for good discussion.
>
> Jim/KK1W
>
>
>
>
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