[Elecraft] K3: Audio settings

[Josh Fiden]

I have the new synth boards, since that was clearly worthwhile. Already have outboard preamp & don't care about USB since at this point seems like I've accumulated a herd of USB/RS232 converters that work fine, plus Tascam audio interface. 

I'll have to check DSP board rev. Was there a specific serial number for that changeover?

Thanks for the info!

73,
Josh W6XU

Sent from my mobile device

> On Sep 3, 2018, at 8:40 AM, Don Wilhelm <donwilh at embarqmail.com> wrote:
> 
> 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
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