[Elecraft] K3S audio board for K3 upgrade?

[Grant Youngman]

Well .. I'd get a headache listening to most ANYTHING after 4-5 hours.  The symphony in Bass Hall, or even good vinyl on a great turntable/arm/cartridge and a very good amp and very good headphones is no different.  

Maybe I just found the "right" speakers for my K3.  They're old RatShack (RCA) speakers with linaeum tweeters.  I have a lot of them, and use them on everything (new, old) in the shack.   I've never  found a powered set of "computer" speakers worth bothering with ... and I've tried quite a few not so cheapie ones, or the usual-suspect ham speakers.  I haven't tried the Elecraft offering yet, but probably will at some point. 

After the LPF daughter-board update (or rev D DSP) I haven't had an issue with anything related to K3 audio.  And certainly nothing I'd call a "screech".   The internal speaker is the speaker of last resort. My RX EQ is set to flat. 

That said, I'd still probably buy the updated DSP board for the improved IMD performance. Just because ....

Grant NQ5T

Sent from my iPhone

> 
> I can't define "fatiguing" either, but running AFSK at 915 Hz MARK, I start getting a headache after 4 or 5 hours.