{"product_id":"pam-8403-amplifier-module-with-knob","title":"PAM 8403 Amplifier Module with Knob","description":"\u003cmeta name=\"description\" content=\"Buy PAM 8403 Amplifier Module with Knob 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\u003ePAM 8403 Amplifier Module with Knob\u003c\/h1\u003e\n\u003cp\u003eCompact, high-efficiency Class-D stereo amplifier module powered by the PAM8403 IC, featuring an onboard potentiometer knob for convenient volume control. Delivers crisp 2x3W audio output from a 5V USB-compatible power supply - ideal for portable speakers, DIY audio projects, and embedded sound systems. Available at The Engineer Store, Bengaluru with fast shipping and full technical 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 Stereo Audio Amplifier\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Power\u003c\/td\u003e\n\u003ctd\u003e2 x 3W (4Ohm load, 5V supply)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Voltage\u003c\/td\u003e\n\u003ctd\u003e2.5V - 5.5V DC (5V recommended)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAudio Channels\u003c\/td\u003e\n\u003ctd\u003e2 (Stereo - Left \u0026amp; Right)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTHD+N (Total Harmonic Distortion)\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 (Signal-to-Noise Ratio)\u003c\/td\u003e\n\u003ctd\u003e\u0026gt;= 80dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEfficiency\u003c\/td\u003e\n\u003ctd\u003eUp to 90% (Class-D switching topology)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVolume Control\u003c\/td\u003e\n\u003ctd\u003eOnboard rotary potentiometer knob\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAudio Input\u003c\/td\u003e\n\u003ctd\u003e3.5mm stereo AUX \/ solder pads (L, R, GND)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpeaker Output\u003c\/td\u003e\n\u003ctd\u003eScrew terminals \/ solder pads for Left \u0026amp; Right speakers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRecommended Speaker Impedance\u003c\/td\u003e\n\u003ctd\u003e4Ohm - 8Ohm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eQuiescent Current\u003c\/td\u003e\n\u003ctd\u003e~10mA (low standby power consumption)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBoard Dimensions\u003c\/td\u003e\n\u003ctd\u003eApprox. 30mm x 25mm x 12mm (compact form factor)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting\u003c\/td\u003e\n\u003ctd\u003ePCB mounting holes for secure installation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e-40 degreesC to +85 degreesC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFeatures\u003c\/td\u003e\n\u003ctd\u003eFilterless output, short-circuit protection, thermal shutdown\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\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eClass-D Efficiency:\u003c\/strong\u003e Up to 90% power efficiency means minimal heat generation, eliminating the need for bulky heatsinks and making it perfect for battery-powered projects.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntegrated Volume Knob:\u003c\/strong\u003e Onboard potentiometer provides smooth, hands-on volume adjustment without requiring external controls or software.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUSB-Compatible 5V Operation:\u003c\/strong\u003e Runs directly from USB power banks, phone chargers, Arduino 5V pins, or any standard 5V DC source for maximum versatility.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrue Stereo Output:\u003c\/strong\u003e Dual-channel amplification drives two separate speakers for genuine left\/right stereo sound separation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFilterless Design:\u003c\/strong\u003e PAM8403's filterless architecture reduces external component count, board size, and overall system cost.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuilt-In Protection:\u003c\/strong\u003e Thermal shutdown and short-circuit protection safeguard both the module and your speakers from damage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUltra-Compact Footprint:\u003c\/strong\u003e Tiny PCB fits inside portable speaker enclosures, small robots, wearable devices, and tight project housings.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlug-and-Play Simplicity:\u003c\/strong\u003e Just connect power, audio input, and speakers - no additional driver circuits, capacitors, or configuration needed.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhy Choose The PAM 8403 Amplifier Module with Knob?\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e100% authentic modules sourced directly from trusted, authorized component suppliers\u003c\/li\u003e\n\u003cli\u003eTested and quality-checked at our Bengaluru warehouse before dispatch\u003c\/li\u003e\n\u003cli\u003e1-5 day shipping, 7-8 day delivery across India; same-day delivery available in Bengaluru\u003c\/li\u003e\n\u003cli\u003eExpert technical support to help with wiring, integration, and troubleshooting\u003c\/li\u003e\n\u003cli\u003eUnbeatable price-to-performance ratio for audio amplification projects\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eProject Ideas\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDIY Portable Bluetooth Speaker:\u003c\/strong\u003e Pair with a Bluetooth audio receiver module (e.g., HC-05 or dedicated BT board), two 4Ohm\/8Ohm speakers, and a USB power bank to build a fully wireless portable speaker system with volume control.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eArduino\/Raspberry Pi Sound System:\u003c\/strong\u003e Connect to the audio output of a Raspberry Pi, ESP32 with I2S DAC, or Arduino with DFPlayer Mini to add amplified sound to interactive projects, voice assistants, or notification systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDesktop PC\/Laptop Mini Speakers:\u003c\/strong\u003e Build a compact, custom stereo speaker set powered directly from a USB port - perfect for workstations where space is limited.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRobot Voice \u0026amp; Sound Effects:\u003c\/strong\u003e Integrate into robotics projects to amplify pre-recorded voice prompts, alert tones, or music for interactive robots and smart devices.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntercom or PA System Prototype:\u003c\/strong\u003e Use as the amplification stage in a small-scale intercom, classroom announcement system, or doorbell speaker module.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eGuitar Practice Amp\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\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 PAM 8403 Amplifier Module with Knob Online in India\u003c\/h2\u003e\n\u003cp\u003ePurchase the \u003cstrong\u003ePAM 8403 Amplifier Module with Knob\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\u003ePAM 8403 Amplifier Module with Knob\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\u003ePAM 8403 Amplifier Module with Knob\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":43773710762147,"sku":"TES-EV102404","price":67.84,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/4479\/7091\/products\/knob.jpg?v=1701074012","url":"https:\/\/www.theengineerstore.in\/zh-hans\/products\/pam-8403-amplifier-module-with-knob","provider":"The Engineer Store","version":"1.0","type":"link"}