@crutschow thank you for the filter design. Briefly just now I looked at the tool that you gave a link to in your post #7. That looks interesting, but the problem is that I think connecting the two filters in my first post in cascade to form a band-pass filter, and the cut-off frequency of the high-pass filter at the middle of the pass-band (566 Hz) seems to eliminate audible ringing. It seems that making one filter 2nd order and the other 3rd order, in forming a band-pass filter, makes the chore easier.
It may be that I will still have to revise the filter, in which case thank you for the link to the tool.
-Pete
It may be that I will still have to revise the filter, in which case thank you for the link to the tool.
-Pete