Hi everyone, I recently bought a new microphone (Sony F-V420) to do some Garageband recording, etc. When I plug it in my Macbook input port, the sound is very low, like if the microphone had no power or something. I've heard that because this is a pro level mic, it has a very low impedance. What would be the best way to fix this? 1- Something like Griffin iMic? (Would it work?) 2- A basic pre-amp 3- ??? I'm looking for something very cheap that won't reduce too much the quality of the mic signal... Thanks!