[Elecraft] [K3] K3DSPUPGD or K3DSPLPF

[David Ferrington, M0XDF]

Continuing on this thread, I understand to make the K3DSPUPGD  mod oneself is very hard. I can make the K3DSPLPF  mod with no problem. Do people think the K3DSPUPGD would be of benefit to my failing 56 year old ears?
Just how much does better response below 300 Hz help?

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Since I'm having the P3 shipped, I might as well have some other outstanding mods shipped too.

I've read the instructions for K3DSPLPF and don't think I'd have any trouble making that mod.

I'd like some advice from those that have done or considered it, is it worth getting the K3DSPUPGD instead, does it give me anything that the K3DSPLPF does not?

I also find I have a RXAMDKT, but don't see that on the web site - what is that mod?

73 de M0XDF, K3 #174
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