Analogue and DAC output

Started wiring up an Allo Boss DAC and just remembered that at the moment I passively split the Pi’s analogue output to feed two rooms which works well, I don’t think would be the right thing to do with the DAC output especially as I’ve spent a small fortune on connectors/cables etc. to squeeze the best quality out of this system that I can. Is it possible to simultaneously output audio via analogue and DAC ?.

Regards…