MAX4466 Electret Microphone Amplifier Board – Adjustable Gain

MAX4466 Electret Microphone Amplifier Board with Adjustable Gain

Take your electronics projects to the next level with the MAX4466 Electret Microphone Amplifier Board. Built around the MAX4466 low-noise op-amp IC, this compact module delivers clean, amplified audio signal pickup — perfect for Arduino, Raspberry Pi, and other microcontroller-based builds. Whether you're building a voice-activated system, a sound-reactive display, or a DIY audio project, this board gives you the stable, low-noise preamp performance you need.

Key Features

• Adjustable Gain: On-board trimmer potentiometer lets you fine-tune the amplification level to suit your specific project requirements.
• MAX4466 IC: Industry-standard low-noise electret microphone amplifier chip ensures clean signal output with minimal interference.
• Built-in Electret Microphone: Integrated mic capsule makes the board ready to use right out of the box — no additional microphone required.
• Compact Module Design: Small form factor fits easily into breadboards, enclosures, and custom PCB setups.
• Wide Compatibility: Works seamlessly with Arduino, Raspberry Pi, and most analog-input microcontrollers and computers.
• Two Versions Available: Choose between the Non-Tunable version (fixed gain) or the Adjustable Version (variable gain via trimmer).

Specifications

What's in the Box

• 1 × MAX4466 Electret Microphone Amplifier Board (your choice of version)

Perfect For

• Arduino and Raspberry Pi audio input projects
• Sound-level detection and voice-activated circuits
• DIY preamplifier and audio recording applications
• Robotics, smart home automation, and interactive installations

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Frequently Asked Questions

Q: What is the MAX4466 Electret Microphone Amplifier Board used for?

A: The MAX4466 Electret Microphone Amplifier Board is a compact preamp module designed to amplify the signal from an electret microphone. It is widely used in Arduino, Raspberry Pi, and other microcontroller projects for sound detection, voice input, audio recording, and sound-reactive applications.

Q: What is the difference between the Non-Tunable and Adjustable versions?

A: The Non-Tunable version has a fixed, pre-set gain level, making it ideal for straightforward projects where consistent amplification is needed. The Adjustable Version features an on-board trimmer potentiometer that allows you to dial in the exact gain level your project requires, offering greater flexibility for more demanding applications.

Q: Is this board compatible with Arduino and Raspberry Pi?

A: Yes! The MAX4466 Electret Microphone Amplifier Board is fully compatible with Arduino, Raspberry Pi, and virtually any microcontroller or single-board computer that accepts an analog audio input. Simply connect the VCC, GND, and OUT pins to get started.

Q: Does this board come with a microphone built in?

A: Yes, the board includes an integrated electret microphone capsule, so no additional external microphone is necessary. It is ready to connect and use straight out of the packaging.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.