i'm trying to record an acoustic part with two matched pair condensors. the condensors are plugged into my mackie vlz1604, levels are set there, then two unbalanced 1/4" cables running from the sub outs, into two channels of my old tascam 788 portastudio. the mackie reads the signals as being between 0db - +4db. the recorder (which trim levels are set to the lowest or line level) is reading the signal at -16db. i can't figure out what the problem is, am i missing something?