[Elecraft] APF vs 10 Hz DSP, why they don't sound the same

[DM4iM]

I once owned a FT-107, it had APF, i sure miss that feature.
If you are looking for a good analog Audio-filter, go to

http://www.eurofrequence.de/filtereing/

I own the predecessor with less features for more than 15 years.
I am a satisfied customer, no other relationship.

Martin

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73, DM4iM