{"product_id":"jbl-control-424c-t-commercial-ceiling-speakers","title":"JBL Control 424C\/T 4-Inch CRBI 2-Way Coaxial Ceiling Loudspeaker (Pair)","description":"\u003ch2\u003eJBL Control 424C\/T 4-Inch CRBI-Equipped 2-Way Coaxial Ceiling Loudspeaker\u003c\/h2\u003e\n\n\u003cp\u003eThe JBL Control 424C\/T is a 4-inch two-way coaxial ceiling loudspeaker from the Control 400 Enhanced Coverage Series, featuring JBL's exclusive Coplanar Radiation Boundary Integrator (CRBI) technology - delivering exceptionally consistent 130-degree conical coverage that reduces on-axis hot spots and off-axis cold spots throughout the listening area.\u003c\/p\u003e\n\n\u003cp\u003eFor A\/V designers and integrators seeking a premium 4-inch ceiling speaker for retail, corporate, hospitality, or education spaces, the Control 424C\/T provides superior coverage consistency compared to standard coaxial designs, often allowing fewer speakers to cover a given area without sacrificing uniformity. The included 70V\/100V transformer and 8-ohm direct input support flexible system design.\u003c\/p\u003e\n\n\u003cp\u003eControl 400 Enhanced Coverage Series models share JBL's redesigned terminal covers with top and side cable entry ports, tool-free captive hand-screws, and a dogear mounting system that accommodates a wide range of ceiling thicknesses. Magnetic, paintable, bezel-less grilles with integrated safety tethers ensure a refined appearance while meeting UL 1480A, UL 2043, NFPA 90A, and NFPA 70 plenum-installation requirements.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003eCRBI Coplanar Radiation Boundary Integrator:\u003c\/strong\u003e JBL's exclusive CRBI technology provides 130-degree conical coverage with dramatically reduced on-axis hot spots and off-axis cold spots for a more pleasant listening experience throughout the space.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003e4-Inch Two-Way Coaxial Driver:\u003c\/strong\u003e 100mm woofer and 19mm soft-dome tweeter deliver full-range coverage from 75 Hz to 18 kHz with high efficiency.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003e70V\/100V and Direct Operation:\u003c\/strong\u003e Integrated transformer supports both distributed-line and 8-ohm low-impedance system configurations.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003ePaintable Magnetic Grille:\u003c\/strong\u003e Full-face bezel-less magnetic grille with integrated safety tether provides a contemporary aesthetic and easy paint customization.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eCaptive Dogear Mounting:\u003c\/strong\u003e Dogear design accommodates various ceiling thicknesses for efficient, repeatable installation.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003ePlenum-Rated:\u003c\/strong\u003e UL 1480A and UL 2043 listed for air-handling ceiling plenum environments.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003eLF Driver:\u003c\/strong\u003e 100 mm (4 in) woofer\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eHF Driver:\u003c\/strong\u003e 19 mm (0.75 in) soft-dome tweeter\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eFrequency Range:\u003c\/strong\u003e 75 Hz - 18 kHz\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eCoverage Pattern:\u003c\/strong\u003e 130 degrees conical (CRBI)\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eTransformer:\u003c\/strong\u003e 70V\/100V multi-tap\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eImpedance (Direct):\u003c\/strong\u003e 8 ohm\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eSold As:\u003c\/strong\u003e Pair\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eIP Rating:\u003c\/strong\u003e IP33 per EN\/IEC 60529\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eSafety Certifications:\u003c\/strong\u003e UL 1480A, UL 2043, NFPA 90A, NFPA 70, CSA C22.2 No. 205\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eOperating Temperature:\u003c\/strong\u003e 0 deg C to 45 deg C\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003e(2) JBL Control 424C\/T Ceiling Loudspeakers\u003c\/li\u003e\n \u003cli\u003eMounting Hardware\u003c\/li\u003e\n \u003cli\u003eWhite Round Paintable Magnetic Grilles\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"JBL","offers":[{"title":"Default Title","offer_id":46166135931077,"sku":"JBL-C424CT","price":496.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0630\/3085\/3829\/files\/JBL_Control_400Series_ProductPhoto_424CT_Angle_screen_TopDown_vert_medium_e9c26be9-6709-4a78-9f3a-b9598a03f129.webp?v=1777674475","url":"https:\/\/avlgear.com\/products\/jbl-control-424c-t-commercial-ceiling-speakers","provider":"AVLGEAR","version":"1.0","type":"link"}