[CW] Audio "System" for CW notes?

[Ed]

Ken, KA0W wrote:
> What are CW ops using for the audio output side of
> their setup? Speaker, external DSP unit, passive or
> active filters?
> 
> What gets that favored note tone out best to the ears?
> 
> I have tried many arrangements using DSP units,
> passive and active filters, many different types of
> speakers. Don't seem to find the ultimate speaker /
> filter combination for my 500 Hz tone that I enjoy to
> listen to. I know it isn't found without externals.
> Had most of the current medium to upper end rigs -
> what comes out of the audio ports needs conditioning -
> some more than others.
> 
> Thank you for any suggestions,
> 
> Ken, KA0W

I use the 500Hz filter in the rig and an Autek QF-1A, this combination 
works well for me.

Ed W3NR