Josh,
Yes, the K3S has some improvement to the audio in that there is an extra
gain stage that distributes the audio gain a bit better. I do not
consider it worthwhile for my K3 - the DSP board would have to be
replaced. There was a change to the K3 DSP board much earlier that
added a low pass filter as well as lower frequency audio response to the
original K3 audio. For a time, there wa a DSP board swap program to
upgrade the DSP board, but that has now been retired, but you can still
purchase the low pass filter add-on. If you have the Rev D DSP board,
it is already installed.
The new synthesizer will get you the most "bang for the buck"
improvement in the K3 RF performance, and the new KXV3B adds the 20 dB
preamp for 17 meters and above. The KIO3B can add the USB interface
rather than the RS-232 as well as an internal soundcard.
73,
Don W3FPR
On 9/3/2018 10:56 AM, Josh Fiden wrote:
I have two original K3. Wondering if I missed something. The "S" has
improvements to receive audio? Or is this just referring to the new synthesizer?
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