[Amps] K3 Drive Levels and the SPE 1.3K-FA

[John Simmons]

Sounds like you have had some expensive learning experiences. The 
easiest solution is to put a 2-3 dB pad between the output of the K3 and 
the input of your amp. Look on eBay; you can find various combinations 
of connectors and loss ratings. They are not expensive.

-de John NI0K

dgb wrote on 11/16/2019 12:46 PM:
> I run a lot of rtty and digital with my K3. I always set the amp to 
> the mid range getting 8-900w out. It takes only 8-11 w drive from the 
> K3 to accomplish that.
>
> Note: SPE recommends to run the amp in Mid Range for digital 
> operation. When I first got the amp I made the mistake of running it 
> in the high range and melted the copper heat sink, which was not 
> considered a warranty repair, and was an expensive lesson learned.
>
> Over the  course of the 3 yrs. that I've owned the amp,  I have blown 
> 4 LPA's in the K3 running it at 8-11w. With latest repair the tech 
> informed me that the "LPA is not rated for continuous duty at upper 
> power levels (like the digital Modes)" They suggested running 13w vs 
> 11w so the LPA wouldn't be used. If I do that it over-drives the SPE 
> in the mid-range.
>
> What is my suggested recourse?
>
> thanks 73 Dwight NS9I
>
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