I only took my measurements up to 200hz, since I was interested in the subwoofer chain.
I wanted to see what the processor and BFD did to the signal before it got to the subwoofer. After I did the processor loop and BFD loop separately, I added the BFD and did the processor plus the BFD.
I adjusted my scale to -6 and +6, but again I only did the measurement to 200Hz. Some day when I get set all up again I'll extend it out to 30K. I also show the BFD and my processor plus BFD below. No smoothing..... Note the measurements of this kind are only accurate if the cable loop by itself is perefectly flat....
bfd vs bypass vs together copy.jpg
brucek