hi you guys, I need help please. I just got a CAD 49 tube condenser mic, and I can't get any sound off of it. I connected my CAD 49 condenser mic to the analog power supply using the 7-pin XLR connector into the mic in of the power supply. Then I connected my mic preamp which is bulit onto the Xenyx802 mixer to the output of the power supply using a 3 pin XLR. Then my main output of my Xenyx 802 mixer is connected to the unbal input of my firewire audio interface, with 1/4" jack cables into both left and right jack plug in of my interface. Then my firewire interface is connect to my mac using a firewire cable. I dunno what is going on but I can't seem to get any sound from this mic. Can anyone help?