[Elecraft] The K2 sure is a nice sounding radio

[Don Wilhelm]

The key to a "good sounding K2" is proper alignment of the IF filters.
While the filter settings mentioned in the manual will produce workable 
filters, the best filter alignment can be done using Spectrogram (or 
other audio Spectrum Analyzer) and a broadband noise generator.
That will optimize the filters for your particular K2.

You can download Spectrogram (either v5.17 or v16) from my website 
www.w3fpr.com - look for the links near the bottom of the home page.
These are files local to my website and they have been scrubbed for 
viruses many times. Both were declared freeware just before the author 
stopped writing improvements and went out of business.  Norton may 
object because it is not used frequently enough, but other anti-virus 
applications give them a clean bill of health.  I understand that there 
are some copies "in the wild" that do have a virus attached to them.

Instructions on how to set up and use v5.17 for the K2 filters (written 
by Tom Hammond N0SS (SK) can be downloaded from the Elecraft website. 
Google will find them for you.

73,
Don W3FPR

On 4/20/2017 9:32 PM, Eric J wrote:
> I only operate CW, but I've always thought the K2 was a very pleasant radio to listen to. I have one with DSP and one with the AF filter and I prefer the sound of the AF filter too. I've tried a couple of separate speakers, but still prefer the internal speaker for some reason. There aren't a lot of radios that have aged as well as the K2. It's the definition of "classic".  But then, what do I know? I still think my Drake 2B is a pleasure to listen to.
>