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Hello all,
I just made an observation that may shed some light on why some people are complaining of not having enough audio into their headphones. In spite of having the AF gain set to "LOW" in config, I do not ordinarily have this problem - I have plenty of audio into my front connected Heil headphones. Most of the time. Tonight I was perusing some AM broadcasters which had very low audio on their carriers. To my astonishment I found that the AF taper on the K3 is very far from the logarithmic taper found on analog systems. I don't have any instrumentation on my headphones output, but I am betting there is no more than a 6dB increase in output from the 12 o'clock position to full blast. My experience with logarithmic potentiometers is that the output at mid scale (12 o'clock) is 1/7 (voltage) of full scale or -17dB of full blast. I am guessing that the actual pot is linear, but this should be easy to convert to logarithmic (or more correctly, exponential) response.
AB2TC - Knut
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