Eight channel single space rack version with XLR jacks. Reversible racks ears, passive design (no power required), two-year warranty. Feature include: · Simply plug the Hum Eliminator between the offending pieces of equipment to get rid of ground loop or cable related hum · Uses 1:1 isolation transformers to break loop antenna and balance audio lines · Also converts balanced and unbalanced signals · Eight XLR channels in single space rack · Reversible or removable rack ears · Passive device (No power required) · Cold-rolled steel housing, two-year warranty