I have a single Realistic Optimus 7 that I've been using with my Lowe HF-150 
for years. They stopped making those, but you can find them fairly cheap on 
eBay.

wunder
K6WRU

On Apr 22, 2013, at 5:49 PM, Don Wilhelm wrote:

> I was fortunate to find a pair of Radio Shack Optimus speakers (5 inch black 
> cube) at a 2nd hand store for $5.  They work great with my K3.  You may be 
> able to find something similar if you shop around a bit.  These are 
> non-amplified speakers and work quite well, no worries about RF feedback or 
> other problems that sometimes occur with amplified varieties, and the K3 has 
> more than adequate audio to drive these high efficiency speakers.
> 
> Since the K3 tailors the audio response, there is not really a need for 
> "communications" speakers - the RX EQ will shape the audio to your desires, 
> so "full range" speakers will work great with the K3. For those who do 
> SWLing, the full range speakers may be better for those users than 
> communications speakers.
> 
> 73,
> Don W3FPR
> 
> On 4/22/2013 7:36 PM, Pete Lascell wrote:
>> I too have used the 2-way radio speakers for more than 30 years and 
>> originally did with my K3.  But after going thru the junk stach again a 
>> discovered I had a pair of amplified speakers (not cheap) used with Radio 
>> Dispatch Consoles as SELECT and UN-SELECT audio channels.  They contain ~ 6 
>> watt audio amp and a substancial speaker, power by 12 volts.  So I now have 
>> plenty of audio and with the speakers spaced about 6 feet apart there is 
>> noticable separation, and the AFX function is great when desired.
>> 
>> With the extra amplification and volume controls I can set the K3 volume 
>> control for hot earphone level, yet turn down the external speaker levels.
> 
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Walter Underwood
[email protected]



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