[Elecraft] External speakers for K3?

Steve Ellington n4lq at carolina.rr.com
Mon May 11 14:05:13 EDT 2009


By "match closely", do you mean physical appearance or impedance?
Speaker characteristics for SSB and CW may differ. The best overall 
compromise I've found over the past 45 years is the Heathkit HS-1661. It is 
very efficient, as in LOUD, has a thick aluminum cabinet with no vibration 
or peaky resonance. Radio Shack sells a replacement speaker that fits 
perfectly if needed.
For CW only, the MFJ ClearTone, MFJ-281 is hard to beat. It peaks strongly 
at 700 Hz and is very sensitive. Cost about $12.
The HS-1661 shows up on Ebay occasionally and usually sells for about $30 or 
so. I painted mine black.
Modern stereo speakers will work but they usually have higher power ratings 
and require more power. Amplified speakers will also work well but could be 
affected by RFI depending on brand and model.
Steve Ellington
N4LQ at carolina.rr.com
----- Original Message ----- 
From: "Bill Maddock" <n4zi96 at yahoo.com>
To: <elecraft at mailman.qth.net>
Sent: Monday, May 11, 2009 1:11 PM
Subject: [Elecraft] External speakers for K3?


>I would like to find or build an external speaker for my K3. I want 
>something that sounds good,will match closely and is realitively efficent 
>like 92 db @ 1 watt/meter! -What is everyone using?
> Thanks and 73,
>
> Bill N4ZI  K3 #1059 & K3 #2914
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