Thanks Otto--I'm not an owner of a midi-setup, but that could change one day!
Ken, sage advice. I'm hanging onto the original 4 filters (25, 40, 50, 80hz) and calling it a day. I was able to set the gain to 0 on the other filters in #4 and they appropriately disappeared from the BFD LEDs. Cool, I know how to do that now.
When I decide to undergo another technological game of twister, I'll work that last bit of counsel in and I'm sure that will make things work...
For now the sound is noticeably better--mission accomplished!
Thanks again,
Phil