[Elecraft] K3 - background hiss (noisy K3) - update

[bozidar]

Hi,
i have studied all the posts about this topic.
Seems, that is still, huge confusion about that, so i will try to formulate
a problem on simply way:

*With low impedance earphones plugged into the audio jack on the K3, you can
hear a really annoying noise (hiss) even with the AF and RF volume set to
zero(CCW). This audio hiss has a constant level, is added to the audible RF
noise and can prevent one from hearing weak  signals on an otherwise quiet
band.*

That hiss has nothing to do with K3 receiver or settings - simply is
permanent present.
This indicate that something must be wrong with earphones amplifier
LM4811MM, and that is
odd, because LM4811MM seems to be an high quality chip, designed exactly to
work with low impedance earphones , with a minimal amount of external
components?
My question is:
is, in the mean time, known any hardware (or anything else) modification for
that issue?

best regards,
Bozidar



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