The PZM mic averages the vibrations of the top, and not just the sound. So essentially, it will reproduce an accurate picture of what the guitar, as a whole, is doing. No matter if the guitar is carbon fiber, wood, with braces, or without braces, it will reproduce the sound of the guitar. If you like the way your carbon fiber guitar sounds acoustically, that's what you'll get with the Lyric, plugged in.