[Elecraft] [K3] K3 Audio Response - Version 3.33 Firmware

[Paul Christensen]

> Yes but unless the response remains that way when an 8 ohm speaker is
> there its not a very useful measurement.

The plots were meant to observe the radical changes in audio response across 
various firmware.  These aren't subtle changes as one can see from the 
unloaded plots.

With 330uF caps at C9/C13 and slight EQ boost (+ 3dB) on bands 1-3, I am 
confident that the response will appear as shown down to ~ 35 Hz with an 
8-ohm load at the headphone output.  The speaker output response plot should 
be comparable. I will be glad to make this measurement if there's any doubt.

http://216.229.20.37/images/K3-V333-EQ.jpg

Paul, W9AC