I finally jumped into the home recording club yesterday by buying a focusriter scarlet 18i8 and a Warm Audio 251 large condenser tube microphone. I plugged it into the 18i8 I set it to cardioid on the transformer box. when I first plugged into XRL input one set at the default the microphone was so sensitive I could be heard walking on the other side of the room. I then that input to an inst setting. That seems much better. I have heard condenser mikes use phantom power but is this the case with a Tube Microphone that has a power transformer box? I am afraid to test it by pressing the 48v button. I have tried consulting the manual but I am guessing they are not taking the clueless like myself into account.