[Elecraft] K2 Extension Speaker

[Jim Brown]

Several months ago, I bought a small extension loudspeaker at a 
hamfest to use with my radios. I liked it so much that I bought a half 
dozen more. It's a little black rectangular box 3"W  x 2 1/2" H x 2 
1/8" D, and has a nice mounting bracket. It weighs about 8.5 oz. 

The DC resistance of the voice coil is about 4.5 ohms, so it is 
probably an 8 ohm loudspeaker.  When I plug it into the Ext Speaker 
jack of my K2, the resulting sound level is about the same as with the 
built-in speaker, and the sound quality is OK. The box comes apart 
neatly with four screws, and it's a nice looking little 2" diameter cone 
with a dome tweeter.  The loudspeaker has a permanently attached 
10 ft cable that terminates in an 1/8" plug. 

The loudspeaker has a part number SH2P4 printed on it in large 
letters. I paid $5 at two different hamfests, and nearly twice that for 
those I found online. 

This makes a nice, low profile, extension loudspeaker for any ham 
rig, and it's plenty good enough for use with a K2 if the background 
noise level is not extraordinarily high. It would make a nice extension 
speaker to sit on the dash of a car, for example, where the K2 was 
at a greater distance.  

Jim Brown  K9YC