Hi JD, I guess this has nothing to do with Logic Ex (does it work playing songs in Itunes?). You could check your speakers connection (try exchanging cables), right speaker itself (are they active or passive?) or even M-Audio 410 output. I also have this interface and you can use different outputs to figure out what problem you have. You could use outputs 3-4, for instance. Don't forget to assign 3-4 output in Logic channel strip. Check out your panning in Logic also. Good luck!