I had the same setup for a few years, fed with coax. Didn't use a balun, just had some ferrets around the fed ends of the rg6 coax. Used it as an all bander, most of my hf rigs with autotuners would find a match on hf, my ts850 would tune it on 160m. A fine hf antenna for rx porpoises, but it did pick up rfi a bit, especially the neighbor's crt tv till it fried and he replaced it with an lcd tv.
That antenna got me Bear Island on 100w ssb on 15m, it's up only like 20 feet at the highest. Loops are grand.