Thanks Jim (and, others who answered), I expected as much. Right now headphones are OK but a hassle with hearing aids that I need to take off first. The speaker from the KX3 is OK too but not the best audio quality but then again, hams usually don’t care for audio quality that much, as long as it is clear is my desire — then again, I am mostly CW anyway.
phil > On Feb 16, 2026, at 3:44 PM, Jim Brown via Elecraft > <[email protected]> wrote: > > On 2/16/2026 3:15 PM, Phil Hystad via Elecraft wrote: >> Can someone give pointers on this? > > The K3, K3S, and K4 have separate audio power amplifiers for headphones and > speakers, each with their own individual output jacks. I haven't studied the > schematic, but I suspect that the KX3 has only the amplifiers for headphones. > Speakers require considerably more power. > > The headphone output could probably drive a powered speaker (that is, one > with its own built-in amplifier), but powered speakers are notoriously bad > for RFI, both generating noise and being susceptible to nearby transmitters, > so are unlikely to be a solution. > > 73, Jim K9YC > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[email protected] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to [email protected] ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [email protected]
