--- product_id: 330190724 title: "Stereo 20W Class D Audio Amplifier - MAX9744" brand: "adafruit" price: "₱3410" currency: PHP in_stock: true reviews_count: 5 category: "Adafruit" url: https://www.desertcart.ph/products/330190724-stereo-20w-class-d-audio-amplifier-max9744 store_origin: PH region: Philippines --- # Up to 93% efficiency 20W stereo output per channel Short circuit & thermal protection Stereo 20W Class D Audio Amplifier - MAX9744 **Brand:** adafruit **Price:** ₱3410 **Availability:** ✅ In Stock ## Summary > 🔊 Amplify your audio game with power, precision, and protection! ## Quick Answers - **What is this?** Stereo 20W Class D Audio Amplifier - MAX9744 by adafruit - **How much does it cost?** ₱3410 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.ph](https://www.desertcart.ph/products/330190724-stereo-20w-class-d-audio-amplifier-max9744) ## Best For - adafruit enthusiasts ## Why This Product - Trusted adafruit brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Compact & Cool:** Slim, heat-sink-free design fits anywhere and stays cool, ideal for portable or battery-powered rigs. - • **Built-In Safety:** Integrated short circuit and thermal overload protection keeps your gear safe and sound. - • **Powerfully Efficient:** Experience up to 93% Class D efficiency for cooler, longer-lasting performance. - • **Smart Volume Control:** Seamlessly adjust volume via analog pot or 64-step I2C digital commands for precision sound. - • **Stereo Sound Mastery:** Drive dual 4-8Ω speakers with crisp 20W output per channel—perfect for immersive audio setups. ## Overview The Adafruit MAX9744 is a compact, highly efficient Class D stereo amplifier delivering 20W per channel at 4-8Ω loads. Operating between 4.5V and 14V, it boasts up to 93% efficiency, low distortion (0.04% THD+N), and integrated protections against short circuits and thermal overload. Featuring both analog and I2C digital volume control, this breakout board is perfect for professional DIY audio projects seeking powerful, cool-running amplification in a sleek form factor. ## Description This 20W stereo amplifier is a slim board has a class D amplifier onboard that can drive 2 channels of 4-8 ohm impedance speakers at 20W each. Power it with 5-12VDC using the onboard DC power jack and plug stereo line level into the 3.5mm stereo headphone jack and jam out with ease. Since it's class D, its completely cool-running, no heat sinks are required and it's extremely efficient - up to 93% efficiency makes it great for portable or battery powered rigs.The MAX9744 amplifier is very easy to use and has both analog and digital volume control capability. Use a single 1KΩ pot (included) to adjust volume analog-style or hook it up to a microcontroller and send I2C commands to set 64-steps of volume amplification.The MAX9744 has been mounted into a breakout, with polarity-protection, jacks and terminal blocks, i2c level shifting, and a spot to solder in a volume potentiometer. Each order comes with one MAX9744 breakout board with all surface-mount parts fully assembled and d, 3 x 2pin and 1 x 3pin terminal blocks, a 470uF power filter capacitor and 1KΩ trim potentiometer.Note: To use this board, a little soldering is required to attach the terminal blocks and other components, but its fairly easy and expect it should take less than 15 minutes. Review: Gut und günstig - Habe die platine in den PAL Tivoli Audio eingebaut, ersetzt dort die duchgebrannte Endstufe. Keine Klangeinbußen feststellbar. Die Lötarbeiten waren simpel und sind bei Adafruit gut erklärt. Die kleine Platine ließ sich genau zwischen Lautsprecher und Batteriefach einschieben. Review: Fait le job - Simple, facile à mettre en oeuvre. Je l'ai relié à 2 haut parleurs de récupération. Fonctionne sans problème. ## Features - Power From 4.5V 14V Dc Voltage - Up To 93% Efficient (88 93% Typical) - 20Ma Quiescent Current (Or Put Into Shutdown For 1Ua Quiescent) - Up To 29.5Db Max n - Use Dc Or Ac Coupled Line Level Input, Up To 3Vpp.Filterless Spread Spectrum Modulation Lowers.20W Stereo Output (4&Amp;Omega;, Vdd 12V, Thd+N 10%).Low 0.04% Thd+N.Integrated Click And Pop Suppression.Short Circuit And Thermal Overload Protection ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00SK8OH30 | | Best Sellers Rank | #163,200 in Electronics ( See Top 100 in Electronics ) #508 in Home Audio Amplifiers | | Brand | Adafruit | | Brand Name | Adafruit | | Customer Reviews | 4.3 out of 5 stars 56 Reviews | | Item Dimensions | 41 x 54 x 2 millimeters | | Item Weight | 9 g | | Item dimensions L x W x H | 41 x 54 x 2 millimeters | | Manufacturer | Adafruit | | Minimum Supply Voltage | 4.5 Volts | | Minimum supply voltage | 4.5 Volts | | Model | 1752 | | Mounting Type | Surface Mount | | Mounting type | Surface Mount | | Number of Channels | 2 | | Part Number | 1752 | | UPC | 701980281716 | | Unit Count | 1 Count | | Voltage | 14 Volts | ## Product Details - **Battery capacity:** 8 - **Brand:** Adafruit - **Item dimensions L x W x H:** 41 x 54 x 2 millimeters - **Unit count:** 1 Count - **Voltage:** 14 Volts ## Images ![Stereo 20W Class D Audio Amplifier - MAX9744 - Image 1](https://m.media-amazon.com/images/I/71Lvp3S6KIL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Gut und günstig *by P***7 on 7 January 2020* Habe die platine in den PAL Tivoli Audio eingebaut, ersetzt dort die duchgebrannte Endstufe. Keine Klangeinbußen feststellbar. Die Lötarbeiten waren simpel und sind bei Adafruit gut erklärt. Die kleine Platine ließ sich genau zwischen Lautsprecher und Batteriefach einschieben. ### ⭐⭐⭐⭐⭐ Fait le job *by G***. on 19 February 2019* Simple, facile à mettre en oeuvre. Je l'ai relié à 2 haut parleurs de récupération. Fonctionne sans problème. ### ⭐⭐⭐⭐⭐ Great addition to the Arduino board collection *by M***N on 29 March 2024* I have loads of experiment boards for the Arduino projects, this audio amp is a super addition to my collection. ## Frequently Bought Together - Adafruit 1752 Development Board Accessories (Audio Amplifier, 41mm, 54mm, 2mm, 11g) - ELEGOO 120pcs Multicolored Dupont Wire 40pin Male to Female, 40pin Male to Male, 40pin Female to Female Breadboard Jumper Ribbon Cables Kit Compatible with Arduino Projects - EDGELEC 120pcs Breadboard Jumper Wires 20cm Wire Length Optional Dupont Cable Assorted Kit Male to Female Male to Male Female to Female Multicolored Ribbon Cables --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.ph/products/330190724-stereo-20w-class-d-audio-amplifier-max9744](https://www.desertcart.ph/products/330190724-stereo-20w-class-d-audio-amplifier-max9744) --- *Product available on Desertcart Philippines* *Store origin: PH* *Last updated: 2026-07-26*