{"product_id":"pam8403-digital-power-amplifier","title":"PAM8403 Digital Power Amplifier","description":"\u003cmeta name=\"description\" content=\"Buy PAM8403 Digital Power Amplifier online in India at best price from The Engineer Store, Bengaluru. Authentic product, 7-day warranty on manufacturing defects, fast delivery across India.\"\u003e\n\u003ch1\u003ePAM8403 Digital Power Amplifier\u003c\/h1\u003e\n\u003cp\u003eCompact, efficient Class-D stereo audio amplifier module from The Engineer Store, Bengaluru. Delivering 2x3W output from a tiny board, the PAM8403 is the go-to amplifier for portable speakers, DIY audio projects, and embedded sound systems. Fast shipping, 7-day warranty on manufacturing defects, and dedicated support.\u003c\/p\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eAmplifier IC\u003c\/td\u003e\n\u003ctd\u003ePAM8403 (Class-D)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Power\u003c\/td\u003e\n\u003ctd\u003e2 x 3W (into 4Ohm, 5V supply)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChannels\u003c\/td\u003e\n\u003ctd\u003eStereo (Left + Right)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupply Voltage\u003c\/td\u003e\n\u003ctd\u003e2.5V - 5.5V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEfficiency\u003c\/td\u003e\n\u003ctd\u003eUp to 90% (Class-D switching)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTHD+N\u003c\/td\u003e\n\u003ctd\u003e\u0026lt; 0.1% at 1kHz, 1W output\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSNR\u003c\/td\u003e\n\u003ctd\u003e\u0026gt; 80 dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpeaker Impedance\u003c\/td\u003e\n\u003ctd\u003e4Ohm - 8Ohm recommended\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAudio Input\u003c\/td\u003e\n\u003ctd\u003e3.5mm stereo or solder pads (L, R, GND)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eQuiescent Current\u003c\/td\u003e\n\u003ctd\u003e~10mA (very low standby draw)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBoard Size\u003c\/td\u003e\n\u003ctd\u003eApprox. 30mm x 20mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOnboard Features\u003c\/td\u003e\n\u003ctd\u003eVolume potentiometer, power indicator LED\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNo Heat Sink Required\u003c\/td\u003e\n\u003ctd\u003eFilterless Class-D design runs cool\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eOriginal\/Authentic IC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e7-day warranty on manufacturing defects\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupport\u003c\/td\u003e\n\u003ctd\u003eEmail \u0026amp; WhatsApp 24\/7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eWhy Choose the PAM8403 Amplifier?\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncredible efficiency:\u003c\/strong\u003e Class-D topology delivers up to 90% power efficiency - ideal for battery-powered projects with minimal heat generation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrue stereo output:\u003c\/strong\u003e Dual-channel 3W+3W drives two speakers independently for immersive left\/right audio separation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUltra-compact footprint:\u003c\/strong\u003e Tiny 30x20mm board fits inside portable speakers, robots, wearable devices, and tight enclosures\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUSB-powered simplicity:\u003c\/strong\u003e Runs directly from 5V USB, power banks, Arduino 5V pins, or 3xAA batteries - no bulky power supply needed\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOnboard volume control:\u003c\/strong\u003e Built-in potentiometer for easy analog volume adjustment without additional circuitry\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow noise floor:\u003c\/strong\u003e SNR above 80dB and THD below 0.1% ensures clean, distortion-free audio at moderate listening levels\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNo external filter components:\u003c\/strong\u003e Filterless output design reduces BOM cost and simplifies wiring to speakers\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlug-and-play connectivity:\u003c\/strong\u003e Feed audio from smartphones, MP3 modules, Bluetooth receivers, Raspberry Pi, or any 3.5mm line-level source\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e100% authentic PAM8403 IC\u003c\/strong\u003e sourced from trusted suppliers - consistent performance guaranteed\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1-5 day shipping, 7-8 day delivery\u003c\/strong\u003e from our Bengaluru warehouse with same-day dispatch available\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eProject Ideas\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePortable Bluetooth Speaker:\u003c\/strong\u003e Pair with a Bluetooth audio receiver module (like KCX_BT) and two 4Ohm speakers to build a rechargeable wireless speaker powered by a single 18650 cell or USB power bank\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRaspberry Pi Media Center:\u003c\/strong\u003e Add high-quality stereo sound to your Pi-based media player, retro gaming console, or smart mirror - connect directly to the 3.5mm audio jack\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eArduino Talking Projects:\u003c\/strong\u003e Combine with a DFPlayer Mini MP3 module to add voice prompts, alarms, sound effects, or music playback to interactive Arduino projects\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDesktop PC\/Laptop Speaker:\u003c\/strong\u003e Build a compact powered speaker set for your workstation - plug into the headphone jack and power via USB port\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRobot Voice \u0026amp; Sound Effects:\u003c\/strong\u003e Give your robot audible feedback - play navigation alerts, greeting messages, or obstacle warnings through onboard speakers\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntercom \u0026amp; PA System:\u003c\/strong\u003e Use with a microphone preamplifier for a simple one-way announcement or intercom system in workshops or classrooms\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGuitar Practice Amp:\u003c\/strong\u003e Build a tiny battery-powered practice amplifier for electric guitar or ukulele pickup - great weekend DIY project\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIoT Doorbell \/ Alert System:\u003c\/strong\u003e Integrate with ESP32 or NodeMCU to play custom notification tones triggered by motion sensors, doorbells, or MQTT messages\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEducational Audio Experiments:\u003c\/strong\u003e Teach students about Class-D amplification, PWM audio, signal-to-noise ratio, and speaker impedance matching hands-on\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWiring Guide\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePAM8403 Pin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eConnection\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVCC (+)\u003c\/td\u003e\n\u003ctd\u003e5V DC (\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhen will I receive my order?\u003c\/summary\u003e\n\u003cp\u003eProducts ship within 1-5 days from our Bengaluru warehouse. Delivery within 7-8 days to most locations across India.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eIs technical support available?\u003c\/summary\u003e\n\u003cp\u003eYes, 24\/7 support via email and WhatsApp for setup, troubleshooting, and application guidance.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is your return policy?\u003c\/summary\u003e\n\u003cp\u003e7-day returns on manufacturing defects only. Full refund or replacement. Not applicable for user damage or misuse.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eAre bulk discounts available?\u003c\/summary\u003e\n\u003cp\u003eYes, wholesale pricing on orders of 10+ units. Contact us via WhatsApp or email for a custom quote.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003ch2\u003eBuy PAM8403 Digital Power Amplifier Online in India\u003c\/h2\u003e\n\u003cp\u003ePurchase the \u003cstrong\u003ePAM8403 Digital Power Amplifier\u003c\/strong\u003e online at \u003ca href=\"https:\/\/theengineerstore.in\"\u003eThe Engineer Store\u003c\/a\u003e - India's most trusted electronics components store. We deliver across all major cities including Bengaluru, Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata, Ahmedabad, Jaipur, and Surat. Get the best price on \u003cstrong\u003ePAM8403 Digital Power Amplifier\u003c\/strong\u003e with fast 1-5 day shipping from our Bengaluru warehouse. All products are 100% authentic, sourced from authorized distributors with 7-day warranty on manufacturing defects.\u003c\/p\u003e\n\u003cp\u003eLooking to buy \u003cstrong\u003ePAM8403 Digital Power Amplifier\u003c\/strong\u003e at the best price in India? The Engineer Store offers competitive pricing, bulk discounts for orders of 10+ units, and dedicated technical support via email and WhatsApp. Whether you are a hobbyist, student, or professional engineer, we have everything you need for your electronics projects.\u003c\/p\u003e","brand":"My Store","offers":[{"title":"Default Title","offer_id":43773655711907,"sku":"TES-EV102202","price":29.68,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/4479\/7091\/products\/pam_1.jpg?v=1701073591","url":"https:\/\/www.theengineerstore.in\/zh-hant\/products\/pam8403-digital-power-amplifier","provider":"The Engineer Store","version":"1.0","type":"link"}