Double mono to desk?

  • Hi question, I`m experimenting a little bit with the output settings. I`ve gigged always with master stereo out (2x xlr to desk). Sound is fine. Last gig I experimented with double mono out (2x xlr to desk). And I think the sound is little bit thicker/bigger vs the stereo ouput setting. I`ve also experimented with a single mono xlr to the desk but prefer the double (2x xlr) mono ouputs to the desk, because single mono is sounding a little thinner than the double mono option. I`m not using stereo effects so I`m not missing something here. When I listen at home in studio monitors it shows the same behaviour. Can somebody tell me why the sound of the double mono is the thickest of al three? Is it because two mono audio channel feeds of the same source sounds bigger than one? I thought single and dual mono should sound the same, but this isn`t the case. Are there more people who are going double mono to the desk? For what reason? Please let me know, thanks.