Thanks for the topic, polkalover...
It's not yet commonplace for audio folks to have a good handle on the Bacch-SP Theoretical Applied Physics processing. Please do the homework if you are seriously interested in improving your sound. With a limited budget, I opted for the Plug-In version of the BACCH DSP. It has a "one-click on-off tab." It goes unused. And, yes, I am a purist, direct A to B audio guy.
More Peace Pin (bold print for old eyes)