The majority of McIntosh equioment (including my 2102 amp) are, I believe unbalanced and there is an extra circuit added for the convenience of balanced.
Many quite recent models of McIntosh gear have an odd looking output that has a 'balanced' label that have no correlation to othere equipment's definition of balanced.
Many quite recent models of McIntosh gear have an odd looking output that has a 'balanced' label that have no correlation to othere equipment's definition of balanced.