Hi, I use the 200 ohm Heil proset and even with the AF gain set to "LO" I have no problem getting enough audio or distortion free audio. Either there is a number of defective prosets or K3s out there because this is making no sense at all.
Knut - AB2TC Grant Youngman wrote: > > > <snip> > There are two factors here. One is impedance. (The impedance actually > presented by a headphone is frequency dependent and can vary widely from > the "nominal" value). The other is sensitivity. > > I regularly use 250 ohm headphones on the K3 with no issues whatsoever. > Why? They require very little drive to reach an acceptable output level. > So even given their relatively high Z (compared to 32 ohms) it isn't > necessary to drive the output stage of the K3 into clipping or high > distortion levels to get plenty of good audio. > <snip> > Grant/NQ5T > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > > -- View this message in context: http://n2.nabble.com/K3-in-a-cw-pileup-needs-work-tp4523884p4537911.html Sent from the [K3] mailing list archive at Nabble.com. ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html