[Elecraft] Will there be a K4

[Jim Brown]

On 3/24/2019 4:41 PM, Dave Cole (NK7Z) wrote:
> Have you found a good speaker for the K3?  If so, which one is it?

For any serious operating, I always use headphones. Speakers are for 
casual monitoring. If I were to recommend a speaker, it would be: 1)for 
one with very smooth frequency response between 400 Hz and 5 kHz; 2) 4 
ohm impedance; 3) a small diaphragm, and 4) high voltage sensitivity.

Contrary to popular misconceptions, wider range response is not a bad 
thing.Smooth response in the speech region is important. 4 ohm impedance 
means it will receive more power from the K3. A smaller diaphragm 
provides smoother off-axis frequency response, high voltage sensitivity 
means it will be louder. BUT -- #3 and #4 are conflicting design specs 
-- smaller diaphragms have lower voltage sensitivity.

I've used small hi-fi and pro loudspeakers and like the sound, but they 
burn too much space on my operating desk now that I have three video 
monitors (two P3s, and an extension of the computer's desktop). I 
replaced them with little black cubes a few inches that I bought as a 
box of 10 at a Chicago area hamfest about 15 years ago. They're plenty 
good enough for my needs. I also use them in the car for my 
dual-transceiver FM rig, strapped to the two posts on my headrest (two 
of them so that  I can tell which transceiver the audio is coming from).

73, Jim K9YC