Yes, that would be great. The K3 doesn't do that, unfortunately.
The K2 and my other non-Elecraft rigs don't have the 'presence' that the K3 gets from the ability to insert a slight delay on one side.

73,
Victor, 4X6GP
Rehovot, Israel
CWops #5
Formerly K2VCO
https://www.qsl.net/k2vco/
On 26/12/2021 19:57, Julia Tuttle wrote:
I thought this was one of the stereo effects the KX3 did already.

On Sun, Dec 26, 2021, 12:52 jerry <[email protected] <mailto:[email protected]>> wrote:

    So how about a stereo effect where the position of the signal
    depends on
    its frequency?
    Low frequencies on the left, high to the right.  A linear progression
    across
    your head?

                       - Jerry KF6VB


    On 2021-12-25 22:59, Victor Rosenthal wrote:
     > I'll try that. I was also thinking some kind of reverb device
    could be
     > used to insert a variable delay on one side.
     >
     > 73,
     > Victor, 4X6GP
     > Rehovot, Israel
     > CWops #5
     > Formerly K2VCO
     > https://www.qsl.net/k2vco/ <https://www.qsl.net/k2vco/>
     >
     > On 26/12/2021 3:47, Joe Subich, W4TV wrote:
     >>
     >> On 2021-12-25 6:46 PM, Douglas Hagerman via Elecraft wrote:
     >>
     >>> Some of the various Heil headphones, including the one on the
     >>> Elecraft site, have a switch that passively selects between
    mono and
     >>> simulated stereo by changing the phase between the two sides.
     >>
     >> Any *Stereo* headphones can accomplish the same thing by simply
    adding
     >> a DPDT switch wired to reverse the connections (invert polarity) to
     >> one of the two ears.
     >>
     >> 73,
     >>
     >>    ... Joe, W4TV
     >>
     >>
     >> On 2021-12-25 6:46 PM, Douglas Hagerman via Elecraft wrote:
     >>>>
     >>>> The K3 (and I think the KX3 and K4) has a simulated stereo
    function
     >>>> which allows you delay the audio to one channel slightly, which
     >>>> makes
     >>>> signals seem to stand out from the noise. I believe that the
    radios
     >>>> newer than the K3 also have the ability to create stereo
    separation
     >>>> by
     >>>> pitch, which helps in picking out CW signals in QRM.
     >>>>
     >>>> My question is: is there some kind of device that you can get
    that
     >>>> will
     >>>> take the monaural audio from a non-Elecraft radio or a K2 and
     >>>> produce
     >>>> similar effects?
     >>>> -- 73,
     >>>> Victor, 4X6GP
     >>>> Rehovot, Israel
     >>>> CWops #5
     >>>> Formerly K2VCO
     >>>> https://www.qsl.net/k2vco/ <https://www.qsl.net/k2vco/>
     >>>
     >>> Some of the various Heil headphones, including the one on the
     >>> Elecraft site, have a switch that passively selects between
    mono and
     >>> simulated stereo by changing the phase between the two sides. It
     >>> basically seems to widen the perceived space of the sound source,
     >>> possibly helpful.
     >>>
     >>> Doug, W0UHU.
     >>>
     >>
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