How to get balanced inputs working

Just to be sure that something simple is not being overlooked, are you certain that the switch on the DAC is selecting which analog output connector it provides a signal to, as opposed to which digital input connector it is accepting a signal from?

Regards,
-- Al

Yes the audio horizon dac was working in balanced no problem ,can't get the mbl 5011 to work , in xlr , when dac switch on xlr with mbl hooked to balance no sound , as soon as I switch ,from xlr to RCA while still hooked to balance inputs ,music plays , I therefore assume mbl not true balanced input, or it has to be activated by mbl dac

that bogus xlr input is probably in need of service. for the price you've paid for that unit it should be working.