Interesting. Let us know how you got on with the set up.
Just wondering, if your R75 has the DSP installed. Unfortunately mine doesn't have the DSP, and I wonder if lack of DSP in the set makes the narrow filter sounds muffled.
Yes, my only problem with the R75 is that, when the narrow filter is selected, the audio becomes awfully muffled. Due to this, I have been using it with the Wide filter selected only, but many times, I find it too wide, which gives selectivity problems.