I see many recommendations on the forum to use a BFD to smooth out the bass response and I can see where it is very helpful from the before/after graphs. However, I also see a lot of postings describing a problem with BFD humming which seems to be widespread. I would like to get a BFD to help with the bass response but in light of all of the ground loop problems, it seems like it may be better to live with uneven bass response than fighting a systemic ground loop problem. It appears that the ground loop problem is solvable but I has seen so many posts with differing solutions that I'm a little confused. I just don't want to get one and then end up having to live with an annoying hum. Any recommendations or clarification would be appreciated.