MAX9814 or MAX4466 Microphone Amplifier Board

Add microphone input to a sound-reactive, voice-detection or audio-sensing electronics project. This compact amplifier board is available with MAX9814 or MAX4466, so you can select the chip option suited to your design.

Choose the microphone amplifier for your build

• ✅ Use the board as an audio input stage in a compatible microcontroller or circuit project.
• ✅ Select the MAX9814 option when automatic gain control is needed, as identified for that version.

The available options use different amplifier chips. Confirm the selected board's voltage, gain and pinout before wiring; these details are not confirmed as shared between versions.

Select the MAX9814 or MAX4466 version that fits your audio project.