{
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"name": "JL Audio C2-400x 4\" 10cm 2-Way Car Coaxial Speakers System With Sound Deadening Sheet",
"url": "https://www.dynamicsounds.co.uk/jl-audio-c2-400x-4-10cm-2-way-car-coaxial-speakers-system-with-sound-deadening-sheet.html",
"brand": "JL Audio",
"model": "C2-400x + RKXSK",
"sku": "C2-400x / RKXSK",
"gtin": "7427306995817",
"mpn": "",
"identifiers": {
"model": "C2-400x + RKXSK",
"sku": "C2-400x / RKXSK",
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"description": "Package Includes\nJL Audio C2-400x 4\" 10cm 2-Way Car Coaxial Speakers System\nStinger RKXSK Expert Sound Proofing Deadening Material 2 Sheet Speaker Kit\nC2-400x\nCoaxial Speaker System: 4-inch (100 mm) Woofer, 0.75-inch (19 mm) Silk Dome Tweeter\nC2 systems deliver sparkling high-frequency detail, smooth mid-range and powerful mid-bass, thanks to real silk dome tweeters and precision-engineered woofer designs.\nThe C2-400x system features 4-inch (100 mm) woofers with mineral-filled polypropylene cones, long excursion capabilities and stamped steel frames. The woofer design benefits from JL Audio's vast woofer design experience and advanced modeling systems.\nBreakaway mounting tabs on the woofer frame allow the C2-400x to be installed in four-hole or two-hole configurations. Injection-Molded adaptor plates are also included to allow mounting of the C2-400x speakers into a 4 x 6 (100 x 150 mm) speaker location.\nTweeters are coaxially mounted and built with 0.75-inch silk dome diaphragms that deliver smooth, extended response, on and off axis. The small size of the C2 tweeter minimizes tweeter protrusion, allowing C2 coaxials to fit behind most factory speaker grilles.\nSpeaker grilles are included: each consisting of a black grille tray with satin silver accents and a black steel mesh grille with an electroformed JL Audio logo.\nSonic character: Clean and Dynamic\nGeneral Specifications\nContinuous Power Handling (RMS) 35 W\nRecommended Amplifier Power (RMS) 10 - 50 W / Ch.\nSystem Efficiency 84.5 dB @ 1 W / 1 m\nSystem Nominal Impedance 4 Ω\nSystem Frequency Response 71 Hz - 22 KHz ± 3 dB\nCoaxial Physical Specifications\nFrame Outer Diameter* (A) 4.02 in / 102 mm\nGrille Tray Outer Diameter (B) 5.20 in / 132 mm\nMotor Outer Diameter (C) 2.36 in / 60 mm\nFrontal Coaxial Tweeter Protrusion** (D) 0.56 in / 14 mm\nFrontal Grille Protrusion*** (E) 0.66 in / 17 mm\nMounting Hole Diameter (F) 3.81 in / 97 mm\nMounting Depth (G) 1.81 in / 46 mm\nDoes not take into account mounting tabs\nFrontal coaxial tweeter protrusion measured from mounting surface\nFrontal grille protrusion measured from mounting surface\nWhat's in the Box\n2 x 4\" 2-way speakers\n2 x Grilles\n2 x 4x6 adapter brackets\n8 x Self-tapping screws (#8 x 1-3/8\")\n8 x Speed clips\n4 x Self-tapping screws (#8 x 8mm)\n2 x Crimpable female quick slides (0.205\"/5.2mm)\n2 x Crimpable female quick slides (0.11\"/2.8mm)\n2 x JL Audio logo grille badges\nOwner's Manual\nPaper template\n{ note_speakers }\nStinger RKXSK Expert Sound Proofing Deadening Material 2 Sheet Speaker Kit\nExpert level sound dampening\nAluminum outer layer\nSelf adhesive\nEasy installation\nUse on all metal panels, doors, roof, floor, firewall & trunk\nKills panel resonance, squeaks and rattles\nHighest damping vs. weight ratio of any material available\nImproves overall audio frequency response and bass output\nSpeaker kit\nExpert RoadKill Published Specifications\nMinimum Thickness 0.080in\nMinimum Weight 0.65bs/ft2\nAluminum Layer- 6 mils",
"category": [
"Speakers",
"4 inch (10 cm)"
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"rkxsk"
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"amount": 129.99,
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"warranty": "1 Year Warranty on all items",
"updated": "2026-08-21T14:07:09+00:00",
"store": {
"name": "Dynamic Sounds Ltd.",
"url": "https://www.dynamicsounds.co.uk/",
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