I just got one of these and have it connected to my Fast Track Pro, i am using an MXL V63M mic, i have to say that i can not get a louder signal to my comp, without adding the same amount of noise, i try to track at around -12 to -18 dBFS, Increasing the gain on the VTB1 or the Fast Track Pro alone yeilds equal noise. I never had a problem getting my mic loud enough with the built in pres on the FTP, i just thought i could bet a cleaner signal at a higher gain level using the VTB-1 preamp and bypassing the FTP's pres at the line level. Seems to not be that way, I get almost exactly the same results, so is it just my mic or what. I will most likely be returning this preamp, and sticking with the FTP as is. Any input please....