{"product_id":"tpa3118d2-2x50w-bluetooth-5-dual-channel-audio-amplifier-board-dc12-24v","title":"TPA3118D2 2×50W Bluetooth 5.0 Dual Channel Amplifier Board","description":"\n\u003ch2\u003eTPA3118D2 Dual Channel 2×50W Bluetooth 5.0 Digital Audio Amplifier Board\u003c\/h2\u003e\n\u003cp\u003eUpgrade your audio setup with the \u003cstrong\u003eTPA3118D2 Dual Channel Digital Power Amplifier Board\u003c\/strong\u003e — a compact, high-performance amplifier module delivering up to \u003cstrong\u003e50W per channel (100W total)\u003c\/strong\u003e at 24V. Whether you're building a home audio system, a DIY speaker project, or a custom sound installation, this board combines powerful output, Bluetooth 5.0 wireless connectivity, and robust built-in protections in a slim, easy-to-integrate package.\u003c\/p\u003e\n\u003cp\u003eMade in Mainland China.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDual Channel 50W+50W Output:\u003c\/strong\u003e Drive medium-to-high-power speakers with confidence — 50W per channel at 24V input, 25W per channel at 12V input.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBluetooth 5.0 \u0026amp; AUX Input:\u003c\/strong\u003e Connect wirelessly via Bluetooth 5.0 (device name: \"HW-BT\") or use the 3.5mm AUX audio jack for wired input flexibility.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWide Voltage Range (DC 12–24V):\u003c\/strong\u003e Works across a broad power supply range — 24V recommended for maximum output. Uses a standard DC socket interface.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBuilt-In Protection Mechanisms:\u003c\/strong\u003e Integrated over-voltage, over-current, over-temperature, and short-circuit protection circuits keep your equipment safe during operation.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAdjustable Volume Knob:\u003c\/strong\u003e Turn clockwise to increase volume, counterclockwise to decrease. The knob also powers the board off when turned fully counterclockwise.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompact \u0026amp; DIY-Friendly Design:\u003c\/strong\u003e Measuring just 80×50×15mm, this board fits easily into custom enclosures, speaker boxes, and DIY electronics projects.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e4–8Ω Output Impedance:\u003c\/strong\u003e Compatible with a wide range of standard home and car speakers.\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  \u003ctbody\u003e\n    \u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eChip Model\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eTPA3118D2\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003ePower Supply Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eDC 12–24V (24V recommended)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eInput Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e3A\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;\"\u003e50W×2 @ 24V | 25W×2 @ 12V\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eOutput Impedance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e4–8Ω\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eAudio Input\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eBluetooth 5.0 \/ 3.5mm AUX\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background:#f5f5f5;\"\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 \u0026amp; Right)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e80×50×15mm \/ 3.15×1.97×0.59 in\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003ePower Interface\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eDC Socket\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\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\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eWhat's in the Box\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1× TPA3118D2 Power Amplifier Board\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eUsage Tips\u003c\/h3\u003e\n\u003cp\u003eFor Bluetooth use, enable Bluetooth scan on your phone or device and connect to \u003cstrong\u003e\"HW-BT\"\u003c\/strong\u003e. For wired audio, plug your source device into the 3.5mm AUX jack. Output terminals are labeled \u003cstrong\u003eOUTR\u003c\/strong\u003e (right channel) and \u003cstrong\u003eOUTL\u003c\/strong\u003e (left channel) for easy speaker wiring. Always use a stable DC 24V power supply for best performance.\u003c\/p\u003e\n\n\u003cp\u003eFor more information on safe electronics use and electrical standards, visit the U.S. Consumer Product Safety Commission (CPSC).\u003c\/p\u003e\n\n\u003ch3\u003eYou May Also 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 5x20mm \u0026amp; 6x30mm Screw\u003c\/a\u003e — great for protecting your amplifier power supply circuits.\u003c\/li\u003e\n  \u003cli\u003e\n\u003ca href=\"\/products\/100w-dual-port-car-charger-starlink-mini-fast-charging\"\u003e100W Dual-Port Car Charger – Fast Charging\u003c\/a\u003e — a versatile DC power solution for portable amplifier setups.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What is the maximum output power of the TPA3118D2 amplifier board?\u003c\/h4\u003e\n\u003cp\u003eA: The TPA3118D2 amplifier board delivers up to \u003cstrong\u003e50W per channel (100W total)\u003c\/strong\u003e when powered by a 24V DC supply. At 12V, output is 25W per channel. For the best performance, use a stable 24V power supply rated at least 5A.\u003c\/p\u003e\n\n\u003ch4\u003eQ: How do I connect my phone to the TPA3118D2 via Bluetooth?\u003c\/h4\u003e\n\u003cp\u003eA: Simply enable Bluetooth on your smartphone or tablet, scan for available devices, and select \u003cstrong\u003e\"HW-BT\"\u003c\/strong\u003e from the list. Once paired, your audio will stream wirelessly to the amplifier board. The board also supports a 3.5mm AUX input if you prefer a wired connection.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What speakers are compatible with this amplifier board?\u003c\/h4\u003e\n\u003cp\u003eA: This amplifier board is compatible with speakers with an impedance of \u003cstrong\u003e4–8 ohms\u003c\/strong\u003e, which covers most standard home audio and DIY speaker systems. Make sure your speakers can handle the wattage output (up to 50W per channel at 24V) to avoid damage.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Does the TPA3118D2 board have any built-in safety protections?\u003c\/h4\u003e\n\u003cp\u003eA: Yes. The TPA3118D2 chip includes integrated \u003cstrong\u003eover-voltage, over-current, over-temperature (thermal shutdown), and short-circuit protection\u003c\/strong\u003e, making it a safe and reliable choice for DIY audio projects and custom speaker builds.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What is the maximum output power of the TPA3118D2 amplifier board?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The TPA3118D2 amplifier board delivers up to 50W per channel (100W total) when powered by a 24V DC supply. At 12V, output is 25W per channel. For the best performance, use a stable 24V power supply rated at least 5A.\"}}, {\"@type\": \"Question\", \"name\": \"How do I connect my phone to the TPA3118D2 via Bluetooth?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Simply enable Bluetooth on your smartphone or tablet, scan for available devices, and select \\\"HW-BT\\\" from the list. Once paired, your audio will stream wirelessly to the amplifier board. The board also supports a 3.5mm AUX input if you prefer a wired connection.\"}}, {\"@type\": \"Question\", \"name\": \"What speakers are compatible with this amplifier board?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"This amplifier board is compatible with speakers with an impedance of 4–8 ohms, which covers most standard home audio and DIY speaker systems. Make sure your speakers can handle the wattage output (up to 50W per channel at 24V) to avoid damage.\"}}, {\"@type\": \"Question\", \"name\": \"Does the TPA3118D2 board have any built-in safety protections?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes. The TPA3118D2 chip includes integrated over-voltage, over-current, over-temperature (thermal shutdown), and short-circuit protection, making it a safe and reliable choice for DIY audio projects and custom speaker builds.\"}}]}\u003c\/script\u003e","brand":"Oasis Select","offers":[{"title":"United States","offer_id":47710867456105,"sku":"200007763:201336106","price":29.37,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0679\/7931\/3257\/files\/Sb8d19c7a8df3401f88bbeec1519669a3c.webp?v=1782061220","url":"https:\/\/oasis-select.com\/products\/tpa3118d2-2x50w-bluetooth-5-dual-channel-audio-amplifier-board-dc12-24v","provider":"Oasis Select","version":"1.0","type":"link"}