Home › Forums › Products › Rackmount › Using an Eclipse with a Mesa Boogie Mark V › Reply To: Using an Eclipse with a Mesa Boogie Mark V April 17, 2015 at 1:13 am #138878 jblguy I Just use 1/4" all the way. once you bridge pins 1& 3 together on the xlr, it isn't a balanced line anymore anyway, Right?