Skip to main content
Home / Computer Hardware, Monitors & Peripherals / MAX9814 Microphone Amplifier Module for MIC Sound Amplification (2.7V-5.5V)

Attributes

Brand -
Category Electronic Components / Maker DIY / Computer Hardware, Monitors & Peripherals
Origin -
Operating Voltage 2.7V to 5.5V DC
Gain Settings 24dB, 29dB, 34dB, 39dB
Signal-to-Noise Ratio 92dBA (A-weighted)
Frequency Response 20Hz to 20kHz
Microphone Type Electret Condenser Compatible
Output Interface Analog Audio Output
PCB Dimensions 16mm x 13mm x 3mm
Operating Temperature -40°C to +85°C
Supply Current 3.5mA Typical
Package Includes 1x Module, 1x Header Strip

5 reviews

A

Anonymous

Apr 05, 2026

Rating: 5/5

Easy to Integrate

Very straightforward to wire up. The voltage range is flexible enough for 3.3V and 5V logic. No issues so far in my prototype.

A

Anonymous

Mar 31, 2026

Rating: 4/5

Good Value Module

Solid build quality. The only downside is the header pins weren't included soldered, but that's expected. Sound is clean with minimal noise.

A

Anonymous

Mar 30, 2026

Rating: 5/5

Excellent Preamp

I used this for a voice recognition project. The AGC works well to keep levels consistent. Highly recommended for embedded systems.

A

Anonymous

Feb 28, 2026

Rating: 5/5

Perfect for Arduino

Works flawlessly with my Arduino Uno. The gain settings are easy to select via the GPIO pin. Audio quality is surprisingly clear for the price.

A

Anonymous

Jan 27, 2026

Rating: 4/5

Works as Described

Does exactly what it says on the tin. Gain selection is handy. Took a star off because the PCB is quite small, hard to solder for beginners.

5 FAQ

Q: What is the output impedance?

A: The output is designed to drive high-impedance inputs like ADCs or line-in ports, typically around 1k ohm.

Q: Can I connect this directly to a speaker?

A: No, this is a preamp. You will need a separate power amplifier module to drive a speaker.

Q: How do I select the gain level?

A: The gain is selected by the voltage level on the Gain pin. Please refer to the datasheet for specific voltage thresholds.

Q: Does this module include the microphone?

A: No, this is an amplifier module only. You need to connect an external electret microphone.

Q: Is this compatible with Raspberry Pi GPIO?

A: Yes, it operates at 3.3V and 5V, making it compatible with Pi GPIO pins.

Explore your interests

All Categories
Best Seller (30)
New List (30)
Sheepskin Rattle Traditional Handmade Baby Safe to Chew Brass Stick Bell Clapper Rattle Intangible Cultural Heritage Leather Newborn

Sheepskin Rattle Traditional Handmade Baby Safe to Chew Brass Stick Bell Clapper Rattle Intangible Cultural Heritage Leather Newborn

$16.00

Glass Reactor with Multi-Function Stirring and High-Temperature Resistance - Double-Layer Glass Reactor from Manufacturer, Customizable

Glass Reactor with Multi-Function Stirring and High-Temperature Resistance - Double-Layer Glass Reactor from Manufacturer, Customizable

$85.00

Charcoal Blending Stump Set for Sketching - Highlight, Shadow, and Detail Tools with Replaceable Sponge Tips for Artists

Charcoal Blending Stump Set for Sketching - Highlight, Shadow, and Detail Tools with Replaceable Sponge Tips for Artists

$4.80

Minimalist Stainless Steel Toothbrush Holder with Drainage - Ins Style Bathroom Organizer for Cosmetics

Minimalist Stainless Steel Toothbrush Holder with Drainage - Ins Style Bathroom Organizer for Cosmetics

$10.40

Qili Automotive Paint Degreasing Cloth – Glue/Dust Removal Paper, Industrial Wiping & Absorbent Paper

Qili Automotive Paint Degreasing Cloth – Glue/Dust Removal Paper, Industrial Wiping & Absorbent Paper

$313.12

Qingzhu Sketch Blending Cotton - Professional Sponge Balls & Paper Stumps for Art Students, Colorful Thick Absorbent Drawing Tools

Qingzhu Sketch Blending Cotton - Professional Sponge Balls & Paper Stumps for Art Students, Colorful Thick Absorbent Drawing Tools

$4.38

Electric Scooter Dashboard Cover for Aima Metaverse PLAY Instrument Panel Screen Protector Waterproof Case

Electric Scooter Dashboard Cover for Aima Metaverse PLAY Instrument Panel Screen Protector Waterproof Case

$13.50

Continental Tire 265/40R22 106V XL FR CSC5 SUV - Compatible with BYD Tang (Removed from Vehicle)

Continental Tire 265/40R22 106V XL FR CSC5 SUV - Compatible with BYD Tang (Removed from Vehicle)

$618.00

Yandi Retainer Storage Case for Kids - Lightweight Portable Box for Orthodontic Aligners and Dentures

Yandi Retainer Storage Case for Kids - Lightweight Portable Box for Orthodontic Aligners and Dentures

$8.42

Zhizhi Manshu Wen Zhengming Small Regular Script Collection of Twelve Ancient Texts: Yueyang Tower Record, Peach Blossom Spring Record, Farewell to Dongyang Ma Sheng Xu

Zhizhi Manshu Wen Zhengming Small Regular Script Collection of Twelve Ancient Texts: Yueyang Tower Record, Peach Blossom Spring Record, Farewell to Dongyang Ma Sheng Xu

$68.00

Factory Direct Rubber Molding Tools - Custom Production & Processing

Factory Direct Rubber Molding Tools - Custom Production & Processing

$2,280.00

Catalytic Combustion Waste Gas Treatment Equipment - RCO Activated Carbon Adsorption and Desorption Integrated Machine for Industrial Exhaust Processing

Catalytic Combustion Waste Gas Treatment Equipment - RCO Activated Carbon Adsorption and Desorption Integrated Machine for Industrial Exhaust Processing

$26,000.00

ASY Gravure Printing Machine for Plastic Film, 6-Color Flexographic Printer for Shopping Bags

ASY Gravure Printing Machine for Plastic Film, 6-Color Flexographic Printer for Shopping Bags

$86,400.00

Coil Refractory Cement for Medium-Frequency Furnace Repair - Fine High-Temperature Bonding Agent for Copper Coils (White/Red)

Coil Refractory Cement for Medium-Frequency Furnace Repair - Fine High-Temperature Bonding Agent for Copper Coils (White/Red)

$7,800.00

Over-Toilet Storage Rack - No-Drill Bathroom Organizer Shelf for Restrooms and Washrooms, Space-Saving Storage Solution

Over-Toilet Storage Rack - No-Drill Bathroom Organizer Shelf for Restrooms and Washrooms, Space-Saving Storage Solution

$8.90

NIU NXT Instrument Cover for FXT/FX Electric Scooters – Waterproof Protective Case and Modification Accessory

NIU NXT Instrument Cover for FXT/FX Electric Scooters – Waterproof Protective Case and Modification Accessory

$6.50

Anlin FK1 Cheyenne Tattoo Pen Silent Model All-in-One for Lining and Shading

Anlin FK1 Cheyenne Tattoo Pen Silent Model All-in-One for Lining and Shading

$221.25

[Osstem Dental Implants] Imported Dental Crowns and Bridges by Aizhier Oral Care for Partial Tooth Loss

[Osstem Dental Implants] Imported Dental Crowns and Bridges by Aizhier Oral Care for Partial Tooth Loss

$230.00

Heavy-Duty Multi-Layer Warehouse Shelving Unit for Storage, Retail, and Home Use

Heavy-Duty Multi-Layer Warehouse Shelving Unit for Storage, Retail, and Home Use

$252.00

Rattle Car Teether Wooden Bead Educational Soothing Teething Set Baby Photo Prop

Rattle Car Teether Wooden Bead Educational Soothing Teething Set Baby Photo Prop

$15.00

Roast Duck and BBQ Warmer Cabinet - Constant Temperature Heating Display Case for Crispy Pork Belly and Hanging Ducks

Roast Duck and BBQ Warmer Cabinet - Constant Temperature Heating Display Case for Crispy Pork Belly and Hanging Ducks

$710.00

Traditional Handmade Baby Rattle with Chewable Sheepskin for Newborns

Traditional Handmade Baby Rattle with Chewable Sheepskin for Newborns

$12.50

5pcs Lily tubular length 7cm fish tank aquarium  glass

5pcs Lily tubular length 7cm fish tank aquarium glass

$9.90

Data Cable Interface Safety Case for iPhone, Apple, and Android Charging Cables - Child and Pet Proof

Data Cable Interface Safety Case for iPhone, Apple, and Android Charging Cables - Child and Pet Proof

$16.80

Commercial Roast Duck Warmer Cabinet Constant Temperature Food Heater Display Counter for Cooked Meat

Commercial Roast Duck Warmer Cabinet Constant Temperature Food Heater Display Counter for Cooked Meat

$1,494.00

Over-Toilet Storage Rack - Multi-Layer Bathroom Organizer with No-Drill Installation for Tank and Supplies

Over-Toilet Storage Rack - Multi-Layer Bathroom Organizer with No-Drill Installation for Tank and Supplies

$17.92

Natural 7A White Azeztulite Loose Beads for DIY Handmade Bracelets, Spacer Beads, Multi-Gem Jewelry Accessories

Natural 7A White Azeztulite Loose Beads for DIY Handmade Bracelets, Spacer Beads, Multi-Gem Jewelry Accessories

$2.07

Hanyue Cordura N66 Rafting Bag Outdoor Swimming Trekking Clothes Storage Ultra-Light Waterproof Dry Bag

Hanyue Cordura N66 Rafting Bag Outdoor Swimming Trekking Clothes Storage Ultra-Light Waterproof Dry Bag

$35.70

Electromagnetic Planetary Stir-Fry Pot Sugar Fillings Pre-made Dish Cooking Equipment Tomato Sauce Chili Sauce Stir-Fry Machine

Electromagnetic Planetary Stir-Fry Pot Sugar Fillings Pre-made Dish Cooking Equipment Tomato Sauce Chili Sauce Stir-Fry Machine

$3,940.00

Factory Direct 6L Stainless Steel Round Buffet Warmer - Electric Heating with Flip-Top Lid for Hotel and Restaurant Use

Factory Direct 6L Stainless Steel Round Buffet Warmer - Electric Heating with Flip-Top Lid for Hotel and Restaurant Use

$764.00