{"product_id":"tpa3116d2-100w-subwoofer-digital-amplifier-board-12-24v-mono-bass","title":"TPA3116 100W Subwoofer Amplifier Board | 12–24V Mono Bass Amp","description":"\n\u003ch2\u003eTPA3116D2 100W Mono Subwoofer Digital Amplifier Board – 12–24V DIY Bass Amp Module\u003c\/h2\u003e\n\u003cp\u003eUpgrade your DIY speaker build with this high-efficiency \u003cstrong\u003eTPA3116D2 digital amplifier board\u003c\/strong\u003e. Delivering up to \u003cstrong\u003e100W of mono bass output\u003c\/strong\u003e, this compact amp module features a built-in preamplifier, bass crossover, and bass volume potentiometer — everything you need to get deep, powerful, room-filling low-end from your custom speaker system. Made in Mainland China.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMultifunctional Design:\u003c\/strong\u003e Combines a preamplifier, bass crossover, and bass volume control in one board — ideal for DIY subwoofer and speaker projects.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTI TPA3116D2 Chip:\u003c\/strong\u003e Built on Texas Instruments' high-performance digital power amplifier chip, delivering professional-grade audio performance.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh Efficiency:\u003c\/strong\u003e Operates on DC 12–24V with up to 90% efficiency, minimizing heat generation and energy waste while supporting up to 100W bass output.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWide Compatibility:\u003c\/strong\u003e Works with switching power adapters, notebook power supplies, rectifier filter transformer supplies, and vehicle\/charging power sources.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQuality Construction:\u003c\/strong\u003e High-grade PCB materials and components ensure stable, consistent performance. Quick and easy to wire up and install.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable style=\"width:100%; border-collapse:collapse;\"\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:6px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eItem Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px; border:1px solid #ddd;\"\u003eDigital Amplifier Board\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:6px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eChip\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px; border:1px solid #ddd;\"\u003eTI TPA3116D2\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:6px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px; border:1px solid #ddd;\"\u003ePCB\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:6px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eInput Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px; border:1px solid #ddd;\"\u003eDC 12–24V\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:6px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eOutput Power\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px; border:1px solid #ddd;\"\u003eUp to 100W (Bass)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:6px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eInput Frequency\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px; border:1px solid #ddd;\"\u003e20Hz – 20KHz\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:6px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eOutput Frequency\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px; border:1px solid #ddd;\"\u003e20Hz – 180Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:6px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eInput Sensitivity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px; border:1px solid #ddd;\"\u003e500mV\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:6px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eSubwoofer Impedance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px; border:1px solid #ddd;\"\u003e2–8Ω\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:6px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eEfficiency\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px; border:1px solid #ddd;\"\u003eUp to 90%\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:6px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px; border:1px solid #ddd;\"\u003eMainland China\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eWhat's in the Box\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1× Amplifier Board\u003c\/li\u003e\n  \u003cli\u003e1× Adapter Cable\u003c\/li\u003e\n  \u003cli\u003e2× Knob Cover\u003c\/li\u003e\n  \u003cli\u003e2× Gasket\u003c\/li\u003e\n  \u003cli\u003e2× Nut\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eImportant Notes\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eOutput power varies depending on supply voltage, speaker impedance, and audio input level. Higher supply voltages generally yield higher output power.\u003c\/li\u003e\n  \u003cli\u003eSpeaker impedance affects supported output power — consult your speaker specs for best results.\u003c\/li\u003e\n  \u003cli\u003eComponent appearance may vary slightly between production batches; functional performance remains consistent.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eYou May Also Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003ca href=\"\/products\/nitrile-work-gloves-anti-slip-full-finger-5-pair\"\u003e5-Pair Nitrile Work Gloves – Anti-Slip Full Finger Safety\u003c\/a\u003e — great for handling electronics safely during assembly.\u003c\/li\u003e\n  \u003cli\u003e\n\u003ca href=\"\/products\/ball-end-hex-screwdriver-bit-magnetic-reduced-shank-steel\"\u003eBall End Hex Screwdriver Bit – Magnetic Reduced Shank Steel\u003c\/a\u003e — handy for mounting and securing your amp board.\u003c\/li\u003e\n  \u003cli\u003e\n\u003ca href=\"\/products\/t2-pure-bare-copper-wire-round-solid-uncoated-0-1-2mm-10m\"\u003eT2 Pure Bare Copper Wire 0.1–2mm Round Solid Uncoated 10M\u003c\/a\u003e — ideal for wiring speaker connections.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.energystar.gov\/products\" target=\"_blank\" rel=\"noopener\"\u003eENERGY STAR product efficiency guidance\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What power supply do I need for the TPA3116 subwoofer amplifier board?\u003c\/h4\u003e\n\u003cp\u003eA: This digital amplifier board requires a DC power supply between 12V and 24V. You can use a switching power adapter, a notebook-style power supply, a rectifier filter transformer, or a vehicle\/charging power source. Higher voltages within this range will generally deliver higher output power to your subwoofer.\u003c\/p\u003e\n\u003ch4\u003eQ: What speaker impedance is compatible with this amp board?\u003c\/h4\u003e\n\u003cp\u003eA: The TPA3116D2 amplifier board supports subwoofer impedances of 2Ω to 8Ω. The maximum output power of up to 100W is achievable depending on your power supply voltage and the impedance of the connected speaker.\u003c\/p\u003e\n\u003ch4\u003eQ: Can I use this amplifier board with an existing 2.0 stereo amplifier setup?\u003c\/h4\u003e\n\u003cp\u003eA: Yes! This mono subwoofer amp module is designed to complement a 2.0 stereo amplifier, adding dedicated bass channel output. Its built-in bass crossover (20Hz–180Hz) and volume potentiometer make it a straightforward addition to any DIY speaker system.\u003c\/p\u003e\n\u003ch4\u003eQ: Is this amplifier board suitable for beginners?\u003c\/h4\u003e\n\u003cp\u003eA: While basic wiring knowledge is helpful, the board is designed for easy installation — simply connect your power supply, audio input, and speaker output. It includes all necessary hardware (adapter cable, knobs, nuts, and gaskets) to get started quickly.\u003c\/p\u003e\n\u003c!-- production-packaging-notice --\u003e\n\u003ch3\u003eProduction \u0026amp; Packaging Notice\u003c\/h3\u003e\n\u003cp\u003eTo maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What power supply do I need for the TPA3116 subwoofer amplifier board?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"This digital amplifier board requires a DC power supply between 12V and 24V. You can use a switching power adapter, a notebook-style power supply, a rectifier filter transformer, or a vehicle\/charging power source. 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