FetHead Phantom USER GUIDE GENERAL DESCRIPTION Philosophy FetHead Phantom is an ultra low-noise, high quality,in-line microphone preamplifier. It provides improved sound for Condenser microphones. Small, compact, but powerful, Fethead Phantom utilizes tried and true FET technology to deliver up to 18dB of clean boost. No more cranking your mic preamp and adding unwanted noise to get your microphone to an acceptable volume.