Help! EZdrummer 2 sound comes out of my IMac fine. I have a presonus Firepod hooked up with firewire and am trying to get sound out of it. Under Audio/Midi setup i do get the option of having the Presonus as an output but when i choose this option i get no sound at all. Under the “output” menu i also get the option of 10 different channels for the ...