Getting correct volume and clarity from the mic
I'm running GarageBand '09 on a new iMac with OS X 10.6.4. Acoustic guitar tracks are fine directly through the inbuilt audio input jack using pickups. Mic however is a problem. I'm using a Shure SM57 and cannot get decent volume or control either directly into the audio port (no surprise there) or through either of my preamps: 1) BOSS RPQ-10 or 2) BBE 386 acoustic pre amp. Both running through the audio input on the Mac.
Before I invest in yet another preamp or expensive connections, I want to be absolutely certain I will not be able to get a decent simple mic signal with what I have.
Can you advise?