{"product_id":"pam8406-class-d-dual-channel-2x5w-digital-amplifier-board-module","title":"PAM8406 Class D Dual Channel 2×5W Digital Amplifier Board","description":"\n\u003ch2\u003ePAM8406 Dual Channel 2×5W Class D Digital Amplifier Board\u003c\/h2\u003e\n\u003cp\u003eUpgrade your audio projects with the ultra-compact \u003cstrong\u003ePAM8406 Class D Digital Amplifier Board\u003c\/strong\u003e — a powerhouse stereo audio module that delivers crisp, clean 5W+5W output from a tiny 24mm×23mm footprint. Perfect for DIY speakers, portable audio devices, robotics projects, and any electronics build that demands high-efficiency amplification in a small space.\u003c\/p\u003e\n\n\u003cp\u003eMade in Mainland China.\u003c\/p\u003e\n\n\u003ch3\u003eWhy Choose the PAM8406 Amplifier Board?\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUltra-Compact Design:\u003c\/strong\u003e At just 24mm × 23mm × 10mm (approx. 0.94″ × 0.91″ × 0.39″), this miniature board slips effortlessly into tight enclosures and digital device interiors.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eExcellent Noise Suppression:\u003c\/strong\u003e Advanced noise-rejection circuitry means zero audible hiss or hum — even with your ear pressed directly against the speaker with no audio input.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDual-Channel Stereo Output:\u003c\/strong\u003e Delivers 5W + 5W stereo power on a standard 5V USB supply. Directly drives 4Ω and 8Ω speakers with independent left\/right volume adjustment.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eClass D Efficiency, No LC Filter Needed:\u003c\/strong\u003e The unique filterless Class D topology eliminates bulky inductors and capacitors, letting you power the board straight from a computer's USB port.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDouble-Side PCB Wiring:\u003c\/strong\u003e Dual-layer board layout eliminates ground-potential imbalance and channel crosstalk — the most common culprits of poor stereo separation.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMachine-Soldered for Superior Quality:\u003c\/strong\u003e Every solder joint is applied by automated pick-and-place machinery, ensuring consistent, reliable connections that manual soldering simply can't match.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable style=\"width:100%; border-collapse:collapse;\"\u003e\n  \u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003ePAM8406\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eOutput Power\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e2 × 5W (stereo)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eSupply Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e2.5V – 5V (max 5.5V)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eSpeaker Impedance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e4Ω \/ 8Ω\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eAmplifier Class\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eClass D (filterless)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eChannels\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eDual (Left + Right)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eBoard Dimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e24mm × 23mm × 10mm\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eNew\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eOrigin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eMainland China\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003ePackage Contents\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 × PAM8406 Stereo Audio Amplifier Module\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eImportant Usage Notes\u003c\/h3\u003e\n\u003cp\u003e⚠️ The \u003cstrong\u003enegative (−) terminals\u003c\/strong\u003e of the left and right channel outputs \u003cstrong\u003emust NOT be connected together\u003c\/strong\u003e — doing so will permanently damage the IC. Always connect your speakers (load) \u003cstrong\u003ebefore\u003c\/strong\u003e applying power.\u003c\/p\u003e\n\n\u003ch3\u003eRelated Products You May Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003ca href=\"\/products\/22awg-glass-tube-fuse-holder-5x20mm-6x30mm-screw-type-10-pack\"\u003e10-Pack 22AWG Glass Tube Fuse Holder 5×20mm \u0026amp; 6×30mm Screw\u003c\/a\u003e — keep your audio circuits protected\u003c\/li\u003e\n  \u003cli\u003e\n\u003ca href=\"\/products\/12-key-flashing-mechanical-keyboard-stress-relief-fidget-toy\"\u003e12-Key Flashing Mechanical Keyboard Stress Relief Fidget Toy\u003c\/a\u003e — another fun electronics gadget\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eFor guidance on electrical safety when working with low-voltage electronics, visit the U.S. Consumer Product Safety Commission (CPSC).\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What power supply does the PAM8406 amplifier board require?\u003c\/h4\u003e\n\u003cp\u003eA: The PAM8406 digital amplifier board operates on a rated supply voltage of 2.5V to 5V, with a maximum limit of 5.5V. It can be powered directly via a standard 5V USB port from a computer or USB charger, making it incredibly convenient for portable and desktop DIY audio projects.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Can the PAM8406 board drive standard 8-ohm speakers?\u003c\/h4\u003e\n\u003cp\u003eA: Yes! The PAM8406 dual channel amplifier board can directly drive both 4Ω and 8Ω small speakers. At 5V supply, it delivers up to 5W per channel (2×5W total stereo), providing ample power for compact speaker enclosures, bookshelf builds, and embedded audio applications.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Does the Class D PAM8406 require an LC output filter?\u003c\/h4\u003e\n\u003cp\u003eA: No — one of the key advantages of this PAM8406 Class D amplifier board is its filterless design. It does not require external LC (inductor-capacitor) output filtering, which simplifies your circuit layout, reduces component count, and saves board space. This makes it ideal for ultra-compact electronics builds.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Is the PAM8406 board suitable for DIY and hobbyist electronics projects?\u003c\/h4\u003e\n\u003cp\u003eA: Absolutely. The PAM8406 stereo amplifier module is a favorite among hobbyists, makers, and electronics engineers for its small footprint, USB power compatibility, low noise, and easy integration into Raspberry Pi, Arduino, and other microcontroller-based audio systems.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What power supply does the PAM8406 amplifier board require?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The PAM8406 digital amplifier board operates on a rated supply voltage of 2.5V to 5V, with a maximum limit of 5.5V. It can be powered directly via a standard 5V USB port from a computer or USB charger, making it incredibly convenient for portable and desktop DIY audio projects.\"}}, {\"@type\": \"Question\", \"name\": \"Can the PAM8406 board drive standard 8-ohm speakers?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes! The PAM8406 dual channel amplifier board can directly drive both 4Ω and 8Ω small speakers. At 5V supply, it delivers up to 5W per channel (2×5W total stereo), providing ample power for compact speaker enclosures, bookshelf builds, and embedded audio applications.\"}}, {\"@type\": \"Question\", \"name\": \"Does the Class D PAM8406 require an LC output filter?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"No — one of the key advantages of this PAM8406 Class D amplifier board is its filterless design. It does not require external LC (inductor-capacitor) output filtering, which simplifies your circuit layout, reduces component count, and saves board space. 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