{"product_id":"jbl-stage3-38f","title":"JBL Stage3 38F 3.5\" 2-Way Coaxial Car Speakers","description":"\u003cp\u003eThe \u003cstrong\u003eJBL Stage3 38F 3.5\" 2-Way Coaxial Car Speakers\u003c\/strong\u003e deliver 50W RMS \/ 400W peak power at a True 4-ohm nominal impedance, bringing Stage3 Series glass-fiber engineering to the compact 3.5\" format. A meaningful upgrade over factory sound in the smallest common OEM speaker size — more bass output, cleaner highs, and a True 4-ohm design that works equally well off a head unit or an amp. Built with eco-friendly recycled plastics and PVC-free wiring.\u003c\/p\u003e\n\n\u003cp\u003eThe woofer is built on JBL's patented \u003cstrong\u003ePlus One™ cone architecture\u003c\/strong\u003e with a \u003cstrong\u003e10% glass-fiber reinforced cone\u003c\/strong\u003e — the added rigidity reduces unwanted flex for tighter, more accurate bass reproduction with frequency response reaching down to 90Hz. The Plus One™ design increases effective cone area beyond a standard 3.5\" driver for more bass output and musical body without upsizing. Sensitivity reaches 88dB at 2.83V, and the \u003cstrong\u003eTrue 4-ohm impedance\u003c\/strong\u003e is optimized to extract maximum clean power from both factory head units and aftermarket amplifiers. The integrated \u003cstrong\u003ePEI balanced dome tweeter\u003c\/strong\u003e delivers smooth, detailed high-frequency reproduction without harshness or fatigue at any volume. Frequency response spans 90Hz to 20kHz. Built with \u003cstrong\u003epost-consumer recycled plastics and PVC-free wiring\u003c\/strong\u003e — premium sound with a reduced environmental footprint. Weight: 0.9 kg.\u003c\/p\u003e\n\n\u003cp\u003eInstallation is a true drop-in for most vehicles with factory 3.5\" locations — common in dash, rear deck, and door applications. Pair with a 4-channel amplifier rated 30–60W RMS per channel for the best results, or run directly off a quality head unit. Note: at 90Hz low-frequency extension, these speakers work best paired with a subwoofer for full-range system coverage.\u003c\/p\u003e\n\n\u003ch2\u003eWhy Choose the JBL Stage3 38F?\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGlass-Fiber Plus One™ Cone:\u003c\/strong\u003e 10% glass-fiber reinforcement delivers tighter bass and more accurate midrange than standard polypropylene — in the most compact common OEM speaker format.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrue 4-Ohm Impedance:\u003c\/strong\u003e Optimized for maximum clean power transfer from factory head units and aftermarket amplifiers — no impedance mismatch, no wasted watts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePEI Balanced Dome Tweeter:\u003c\/strong\u003e Smooth, detailed high-frequency reproduction that spreads evenly throughout the cabin without harshness.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e88dB Sensitivity:\u003c\/strong\u003e Efficient design delivers solid output from both head units and amplifiers — a meaningful upgrade even without an external amp.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e50W RMS \/ 400W Peak Power Handling:\u003c\/strong\u003e Handles real-world amplifier power without distortion or thermal compression — significantly more than typical factory 3.5\" drivers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e90Hz – 20kHz Frequency Response:\u003c\/strong\u003e Clean musical bandwidth from midrange punch to crisp high-frequency detail.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrue Drop-In Fit:\u003c\/strong\u003e Designed for standard 3.5\" OEM locations — no cutting or fabrication required in most vehicles.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEco-Friendly Construction:\u003c\/strong\u003e Post-consumer recycled plastics and PVC-free wiring — premium performance with a lighter environmental footprint.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eAmplifier \u0026amp; Installation Recommendations\u003c\/h2\u003e\n\u003cp\u003eThe Stage3 38F's True 4-ohm impedance and 88dB sensitivity make it a solid performer off a factory head unit. For the best performance, pair with a 4-channel amp rated 30–60W RMS per channel at 4 ohms. Mount in the factory 3.5\" location — no cutting or fabrication required in most vehicles. Use 16-gauge or heavier speaker wire for runs over 6 feet. Note: at 90Hz low-frequency extension, pairing with a subwoofer is strongly recommended for full-range system coverage.\u003c\/p\u003e\n\n\u003ch2\u003eFull Specifications\u003c\/h2\u003e\n\u003cdiv style=\"overflow-x:auto;\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eJBL\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eSTAGE3 38F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConfiguration\u003c\/td\u003e\n\u003ctd\u003e2-Way Coaxial\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpeaker Size\u003c\/td\u003e\n\u003ctd\u003e3.5\" (89mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Handling (RMS)\u003c\/td\u003e\n\u003ctd\u003e50W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Handling (Peak)\u003c\/td\u003e\n\u003ctd\u003e400W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSensitivity (@ 2.83V\/1m)\u003c\/td\u003e\n\u003ctd\u003e88dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrequency Response\u003c\/td\u003e\n\u003ctd\u003e90Hz – 20kHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Impedance\u003c\/td\u003e\n\u003ctd\u003e4 ohms (True 4-Ohm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWoofer Cone Material\u003c\/td\u003e\n\u003ctd\u003ePlus One™ Glass-Fiber Reinforced (10%)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTweeter Type\u003c\/td\u003e\n\u003ctd\u003ePEI Balanced Dome\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConstruction\u003c\/td\u003e\n\u003ctd\u003ePost-Consumer Recycled Plastics, PVC-Free Wiring\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.9 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What vehicles commonly use 3.5\" speakers?\u003c\/strong\u003e\u003cbr\u003eA: 3.5\" speakers are common in dash locations across a wide range of vehicles, particularly older domestic vehicles and some import models. Contact us at Trinity Car Audio with your vehicle's year, make, and model to confirm fitment before ordering.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: How does the Stage3 38F compare to the Club 34F?\u003c\/strong\u003e\u003cbr\u003eA: Both are 3.5\" coaxials at the same power handling and weight. The Stage3 38F uses a glass-fiber reinforced Plus One™ cone and True 4-ohm design at 50W RMS. The Club 34F uses a UV-resistant polypropylene Plus One™ cone at 25W RMS with a 3.0-ohm impedance. The Stage3 38F offers more power handling and True 4-ohm simplicity; the Club 34F offers broader amplifier compatibility at 3.0 ohms.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can I run the Stage3 38F off my factory head unit?\u003c\/strong\u003e\u003cbr\u003eA: Yes — the True 4-ohm impedance and 88dB sensitivity are designed to work well with factory head units. You'll hear a clear improvement over OEM speakers immediately. An external amplifier will unlock the full 50W RMS potential.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Do I need a subwoofer with the Stage3 38F?\u003c\/strong\u003e\u003cbr\u003eA: The 38F's 90Hz low-frequency extension means it won't reproduce bass on its own. For full-range system coverage, pairing with a subwoofer is strongly recommended. The Stage3 38F handles midrange and highs; a subwoofer handles everything below 90Hz.\u003c\/p\u003e","brand":"JBL","offers":[{"title":"Default Title","offer_id":43698231902275,"sku":"JBLSPKS338F","price":59.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0637\/9575\/7123\/files\/LS_JBL_STAGE_3_CAR_AUDIO_38F_HERO_0063_x1_df18be2a-30ce-43c6-a5da-66a207e006b0.png?v=1787255670","url":"https:\/\/www.trinitycaraudio.com\/products\/jbl-stage3-38f","provider":"Trinity Car Audio","version":"1.0","type":"link"}