When playing in a worship band, I used the xlr output of my DR4, and the sound man had to turn on the phantom power to my channel. I assumed that was correct and used the phantom power at home also. Now my xlr output doesn't work (the 1/4" still works fine) and I have been told I burned out the preamp by using phantom power. Anybody know what is the truth? And how I can fix my xlr? I get a very faint buzzy sound from that output.