What kind of microphone would use phantom power?

Phantom power is a method of providing electrical power to microphones through the same cable that carries the audio signal. This method is primarily used with condenser microphones, which require an external power source to operate their internal electronics. Condenser microphones use a capacitor to convert sound into an electrical signal, and this capacitor needs voltage to function properly. Phantom power typically supplies 48 volts, which is common in professional audio equipment, allowing for high-quality recording and amplification of sound.

In contrast, dynamic microphones operate using a different principle that doesn't require external power, as they use electromagnetic induction to create an audio signal. Ribbon microphones, while they can be sensitive and produce high-quality audio, typically operate passively and do not require phantom power, although some modern ribbon mics may have active circuitry that requires it. Carbon microphones are an older technology primarily used in early telephony and do not require phantom power. Therefore, the correct answer highlights the specific requirement of condenser microphones for phantom power, distinguishing them from the other types listed.