{"product_id":"ct14-bluetooth-4-2-stereo-amplifier-board-5w-5w-mini-diy-module","title":"CT14 Bluetooth 4.2 Stereo Amplifier Board 5W+5W Mini DIY Module","description":"\u003ch2\u003eCT14 Micro Stereo Bluetooth 4.2 Power Amplifier Board Module – 5W+5W with USB Charging Port\u003c\/h2\u003e\n\u003cp\u003eUpgrade your DIY speaker projects or breathe new life into an idle sound box with the \u003cstrong\u003eCT14 Stereo Bluetooth 4.2 Power Amplifier Board Module\u003c\/strong\u003e. Compact yet powerful, this mini amplifier board delivers crisp \u003cstrong\u003e5W + 5W stereo output\u003c\/strong\u003e with seamless wireless connectivity — perfect for electronics enthusiasts, makers, and DIY audio builders.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eMade in Mainland China.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBluetooth 4.2 Compatible:\u003c\/strong\u003e Pairs effortlessly with virtually all smartphones, tablets, and Bluetooth adapters available on the market.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e15-Meter Wireless Range:\u003c\/strong\u003e Enjoy reliable, stable wireless audio streaming up to 15 meters in open space.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAuto-Reconnect \u0026amp; Auto-Play:\u003c\/strong\u003e Automatically reconnects to previously paired devices and resumes music playback — no manual steps needed.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eClass F Amplifier – 5W + 5W Output:\u003c\/strong\u003e High-efficiency dual-channel amplifier with excellent sound quality suitable for stereo speaker configurations.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUSB Sound Card Support:\u003c\/strong\u003e Plug-and-play USB sound card functionality — no drivers required.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUSB Charging Port:\u003c\/strong\u003e Integrated charging interface for lithium battery power setups (current-limiting charge mode; use with a battery with a protective plate).\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDIY \u0026amp; Refit Friendly:\u003c\/strong\u003e Ideal for upgrading idle speaker enclosures, building custom audio projects, or any DIY audio production.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBluetooth Version:\u003c\/strong\u003e 4.2\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOutput Power:\u003c\/strong\u003e 5W + 5W (Stereo)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Working Current:\u003c\/strong\u003e 5V \/ 2A\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRecommended Power Supply:\u003c\/strong\u003e 3.7V–5V lithium battery (with protective plate) or 5V adapter\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSpeaker Compatibility:\u003c\/strong\u003e 2–8Ω speakers, 3–10W rated\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWireless Range:\u003c\/strong\u003e Up to 15 meters (open space)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDevice Name:\u003c\/strong\u003e DW-CT14+\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCondition:\u003c\/strong\u003e New\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Mainland China\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eInstructions \u0026amp; Usage Notes\u003c\/h3\u003e\n\u003col\u003e\n  \u003cli\u003eSupports USB sound card — free driver, plug and play (when powered by a lithium battery in normal conditions).\u003c\/li\u003e\n  \u003cli\u003eThis board features a \u003cstrong\u003edual 5W amplifier circuit\u003c\/strong\u003e. Do NOT use it in bridge mode or connect the two amplifier outputs in parallel — doing so will damage the amplifier chip.\u003c\/li\u003e\n  \u003cli\u003eCompatible with 2–8Ω, 3–10W speakers. Outputs true stereo audio.\u003c\/li\u003e\n  \u003cli\u003eFor best sound quality, use a \u003cstrong\u003e5V 2A or higher power adapter\u003c\/strong\u003e.\u003c\/li\u003e\n  \u003cli\u003eRecommended power source: \u003cstrong\u003e3.7V–5V lithium battery with a protective plate\u003c\/strong\u003e or a stable 5V adapter. Avoid unstable power sources such as dry-cell batteries, power banks, or multi-function transformers.\u003c\/li\u003e\n  \u003cli\u003eWhen mounting the board, ensure the \u003cstrong\u003eantenna is kept away from metal components\u003c\/strong\u003e to maintain full wireless range.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch3\u003eHow to Connect\u003c\/h3\u003e\n\u003cp\u003eEnable Bluetooth on your phone or device, scan for available devices, locate \u003cstrong\u003e\"DW-CT14+\"\u003c\/strong\u003e, and tap to connect. Your music will begin streaming instantly.\u003c\/p\u003e\n\n\u003ch3\u003eImportant Safety Note\u003c\/h3\u003e\n\u003cp\u003eThe USB charging interface on this board uses a \u003cstrong\u003ecurrent-limiting charge mode without full charge management\u003c\/strong\u003e. For safe operation, always use a \u003cstrong\u003elithium-ion battery with a built-in protective plate\u003c\/strong\u003e. Improper use may result in damage to your battery or board.\u003c\/p\u003e\n\n\u003ch3\u003ePackage Contents\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 × CT14 Bluetooth Amplifier Main Board\u003c\/li\u003e\n  \u003cli\u003e1 × Plug Line (connector wire)\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 Bluetooth version does the CT14 amplifier board support, and which devices is it compatible with?\u003c\/h4\u003e\n\u003cp\u003eA: The CT14 uses \u003cstrong\u003eBluetooth 4.2\u003c\/strong\u003e, which is backward-compatible with most smartphones, tablets, and Bluetooth audio adapters currently on the market. Simply search for \"DW-CT14+\" in your device's Bluetooth settings to pair.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What type of speakers can I use with this Bluetooth amplifier board?\u003c\/h4\u003e\n\u003cp\u003eA: This board is compatible with \u003cstrong\u003e2–8Ω speakers rated between 3W and 10W\u003c\/strong\u003e. It delivers 5W per channel in stereo configuration. Do not connect the two output channels in parallel, as this will damage the amplifier chip.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What is the best power supply to use with the CT14 amplifier board?\u003c\/h4\u003e\n\u003cp\u003eA: For the best audio performance, use a \u003cstrong\u003estable 5V 2A (or higher) power adapter\u003c\/strong\u003e, or a \u003cstrong\u003e3.7V–5V lithium battery equipped with a built-in protective plate\u003c\/strong\u003e. Avoid using dry-cell batteries, portable chargers, or multi-function transformers, as unstable voltage or current can degrade sound quality or damage the board.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Can I use the USB port on this board as a power supply input?\u003c\/h4\u003e\n\u003cp\u003eA: No. The USB port on the CT14 is designed for \u003cstrong\u003echarging a connected lithium battery only\u003c\/strong\u003e — it cannot be used as a power supply input for the board itself. Please use a dedicated 5V adapter or lithium battery for powering the amplifier.\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 Bluetooth version does the CT14 amplifier board support, and which devices is it compatible with?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The CT14 uses Bluetooth 4.2, which is backward-compatible with most smartphones, tablets, and Bluetooth audio adapters currently on the market. 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