[Elecraft] [K3] K3 Rev C DSP with Low Freq Enhancement ship date info; New swap out option on parts order page. CORRECTION

Julian, G4ILO julian.g4ilo at gmail.com
Sat Oct 10 18:49:15 EDT 2009



KK7P wrote:
> 
>> May I ask why the LF response improvement was confined to headphones
>> only? 
> 
> The speaker system has its own amplifier and already has excellent low 
> frequency response.
> 
> The headphones have their own amplifier and had 10 uF output caps, now
> changed 
> to 100 uF.
> 
> Line out also has its own amplifier and output network.
> 
> Note that these are the electrical paths.  The firmware LF improvement
> applies 
> to *all* paths: headphones, speakers and line out.
> 
> 

Is there any difference between the official modifications and this one:
http://ur5lam.jimdo.com/elecraft-k3-mod-s-page/ ? I find it a bit difficult
to see exactly what the unofficial mods are as it isn't entirely clear what
components / boards are affected from the photographs. I can't really
justify the cost of replacing the DSP board given that I don't think there
is much wrong with the K3 audio at the moment. But I have a big bag of
assorted electrolytic capacitors sitting in my junk box.

-----
Julian, G4ILO. K2 #392  K3 #222.
* G4ILO's Shack - http://www.g4ilo.com
* KComm - http://www.g4ilo.com/kcomm.html
* KTune - http://www.g4ilo.com/ktune.html

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