Negative Positive
Title: hum not a problem
Review: I'm not an expert, but these things seem to work OK. I duplicated the effect someone was complaining about, where it hums, and just like him I could "null out" the hum just at one position of the output control -- but that's with *nothing plugged into the input of the preamp*. When I plugged a condenser mic in, with the 48v *off*, which I assume makes the mic a low impedance into the input, there was no hum at any level. When I turned the 48V on (after *of course* lowering both volume levels to zero), the hum was still absent, with both volume levels at max. ... Good-enough for me! ... I imagine there are quieter preamps, but I'm not sure I'd be able to tell the difference.
Is the review positive or negative? 