I was just on Bluejeans Cable looking at their cables for subs and saw they have an isolation transformer to be placed in line with the sub (RCA connects). All isolation transformers I've read about thus far have been to deal with the ground loop at the satellite or cable box and use RF connectors. I can't find any data on the specific product (short of asking for it from Bluejeans) but am curious how well it would work. Anyone have any experience with this?