low xlr output


Anyone got any ideas on why the xlr balanced output would be quieter than rca.

Normally it would be the other way around, this is on my perreaux r200i tested from my xa5400es and hapz1es

boomtheroom

there are some jumpers inside the unit close to the xlr connections

any idea what they are for ?

photo attached

 

Not about the jumpers but...

From Stereophile:  

"The maximum voltage gain with the R200i's volume control set to its maximum (an indicated "59") was 46.5dB for both the balanced and unbalanced inputs."

Could this be a clue?