{"product_id":"2-5-inch-15w-ipx5-waterproof-bass-speaker-rubber-surround-1","title":"2.5\" 15W IPX5 Waterproof Bass Speaker Unit – Rubber Surround","description":"\u003ch2\u003e2.5-Inch 15W IPX5 Waterproof Speaker Unit with Curved Rubber Surround\u003c\/h2\u003e\n\u003cp\u003eUpgrade your portable audio build with this compact yet powerful \u003cstrong\u003e2.5-inch 15W speaker unit\u003c\/strong\u003e. Designed for DIY enthusiasts and audio builders, it combines an IPX5 water-resistant construction, a curved rubber surround for deep low-frequency response, and a 4Ω low-impedance design — making it ideal for outdoor speakers, bathroom audio installs, bike sound systems, and more.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIPX5 Water Resistance:\u003c\/strong\u003e Sealed gaskets and a treated diaphragm protect against water splashes from all directions — perfect for outdoor, beach, or bathroom speaker builds.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCurved Rubber Surround:\u003c\/strong\u003e The arched rubber border enhances low-frequency output and long-term durability. UV and aging resistant, it won't crack with prolonged outdoor exposure.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e15W Output with Ferrite Magnet:\u003c\/strong\u003e Delivers balanced audio clarity and smooth frequency blending across a 130Hz–15kHz range in a compact 67mm footprint.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e4Ω Low Impedance Design:\u003c\/strong\u003e Works efficiently with common wireless amplifier circuits (e.g., AC6925, JL7016) and can be powered by single or paired lithium cells for extended run time.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e16-Wire KSV Coil:\u003c\/strong\u003e Polyimide base voice coil withstands heat effectively, paired with a treated iron frame and solder tabs for easy integration into most 2.5-inch portable speaker molds.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDiameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e67mm (2.5 inches)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePower (Rated)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e15W\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePower (Max)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e20W\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eImpedance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4Ω\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSensitivity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e83 ±3 dB\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFrequency Response\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e130Hz – 15kHz\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTotal Harmonic Distortion\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e≤5%\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWater Resistance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eIPX5\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWorking Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-18°C to 60°C\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e282g\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMetal frame with rubber surround\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003ePackage Includes\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 × 2.5-inch 16-core 4Ω 15W Curved Rubber Surround Loudspeaker Unit\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eMade in Mainland China.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cem\u003eNote: Please allow 1–3mm tolerance due to manual measurement. Colors may vary slightly from screen to screen.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch3\u003eYou May Also Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/10-piece-complete-gardening-tool-kit\"\u003e10-Piece Gardening Tool Kit – Iron Head \u0026amp; Plastic Handle\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/1-2-inch-8-piece-hex-short-socket-set-vanadium-steel\"\u003e1\/2\" Drive 8-Piece Hex Short Socket Set – Vanadium Steel\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/105-degree-right-angle-driver-with-hex-screwdriver-bit\"\u003e105° Right Angle Driver with 1\/4\" Hex Screwdriver Bit\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.osha.gov\/hand-power-tools\" target=\"_blank\" rel=\"noopener\"\u003eOSHA guidance on hand and power tools\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: Is this 2.5-inch speaker unit truly waterproof for outdoor use?\u003c\/h4\u003e\n\u003cp\u003eA: Yes — this speaker unit carries an \u003cstrong\u003eIPX5 rating\u003c\/strong\u003e, meaning sealed gaskets and a treated diaphragm protect it against water jets and splashes from all directions. It's well-suited for outdoor bike audio rigs, beach setups, and moist bathroom installations.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What amplifier boards are compatible with this 4Ω speaker unit?\u003c\/h4\u003e\n\u003cp\u003eA: The 4Ω low-impedance design works effectively with common wireless amplifier ICs such as the \u003cstrong\u003eAC6925\u003c\/strong\u003e and \u003cstrong\u003eJL7016\u003c\/strong\u003e. It can be efficiently powered by a single or paired lithium cell, making it a great choice for compact portable speaker projects.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What is the difference between the 15W and 20W power ratings listed?\u003c\/h4\u003e\n\u003cp\u003eA: The \u003cstrong\u003e15W figure is the rated (continuous) power\u003c\/strong\u003e — the recommended operating level for consistent, distortion-free performance. The \u003cstrong\u003e20W is the peak (maximum) power\u003c\/strong\u003e the unit can handle in short bursts. For best longevity and audio quality, operate within the 15W rated limit.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Will the rubber surround hold up with long-term outdoor exposure?\u003c\/h4\u003e\n\u003cp\u003eA: The curved rubber surround is formulated to resist UV degradation and aging, so it won't crack or stiffen over time the way foam surrounds typically do. This makes it ideal for permanent outdoor or semi-outdoor audio enclosures.\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\": \"Is this 2.5-inch speaker unit truly waterproof for outdoor use?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes — this speaker unit carries an IPX5 rating, meaning sealed gaskets and a treated diaphragm protect it against water jets and splashes from all directions. 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