The sensitivity of a microphone indicates how strong the signal it produces is when recording a sound. It is measured in mV/Pa or dBV/Pa.

• High sensitivity: The microphone can capture very low sounds, but it may be more sensitive to ambient noise.
• Low sensitivity: It records louder sound sources without distortion, but requires more amplification from the preamp.

In general, condenser microphones have higher sensitivity than dynamic ones.

Max SPL (Maximum Sound Pressure Level) is the maximum sound pressure level (in dB) that a microphone can withstand before it starts to distort the sound.

• High Max SPL (e.g., 140-160dB): Ideal for recording loud sources such as drums, amplified guitar, or live concerts.
• Lower Max SPL (e.g., 120dB): Suitable for vocals and softer recordings.

The higher the Max SPL, the louder the sounds it can capture without distortion.