## What is phantom power and why do I need it? It may sound like an activist group for ghosts, but phantom power is a hidden helper that ensures your mics work as intended… or at all! Image: Simon Vinall for MusicTech Phantom power is a power supply required by condenser microphones. The 48 volt DC power is transmitted through the microphone cable from the preamp — it does not impact the audio signal being returned from the mic. The mic preamps found in most audio interfaces and mixing desks are capable of supplying phantom power. If you’re planning to use a condenser microphone and find that…