{"product_id":"b-c-speakers-8cxn51-422849","title":"8CXN51","description":"\u003ch3\u003eA B\u0026C Coaxial Designed for Compact Professional Speakers\u003c\/h3\u003e\u003cp\u003eThe \u003cstrong\u003eB\u0026C 8CXN51\u003c\/strong\u003e follows the tradition of coaxial drivers aimed at \u003cstrong\u003esound reinforcement\u003c\/strong\u003e : achieving homogeneous reproduction while remaining compact. The coaxial principle (HF driver at the center of the LF cone) promotes \u003cstrong\u003etemporal coherence\u003c\/strong\u003e and clearer directivity than separate transducer setups, a key advantage when targeting a discreet, versatile, and easy-to-place speaker. Thanks to its architecture and \u003cstrong\u003eneodymium\u003c\/strong\u003e magnet, this model meets the demands of modern systems: performance, low weight, and simplified integration.\u003c\/p\u003e\u003ch3\u003eIntended Uses and Target Profiles\u003c\/h3\u003e\u003cp\u003eThis 21 cm coaxial speaker is particularly suited for designing compact \u003cstrong\u003epoint source\u003c\/strong\u003e speakers: stage monitors, small front fills, nearfield reinforcement, fixed installation speakers (bars, multipurpose rooms, places of worship), or high-efficiency portable systems. Its \u003cstrong\u003efrequency response from 70 Hz to 18 kHz\u003c\/strong\u003e and \u003cstrong\u003e100 deg coverage\u003c\/strong\u003e make it a solid foundation for projects seeking wide dispersion and good intelligibility.\u003c\/p\u003e\u003cp\u003eIt is suitable for demanding DIY speaker designers, integrators, and manufacturers looking for a transducer comfortable with both vocals and dynamic music programs, while maintaining stable directivity and compact footprint.\u003c\/p\u003e\u003ch3\u003eDesign, Motorization, and Performance: What Makes the Difference\u003c\/h3\u003e\u003ch4\u003eCoaxial Architecture and Directivity\u003c\/h4\u003e\u003cp\u003eThe 8CXN51 combines an \u003cstrong\u003e8\" (21 cm) LF driver\u003c\/strong\u003e and a \u003cstrong\u003e0.79\" (approx. 20 mm) HF section\u003c\/strong\u003e in a single assembly, delivering a \u003cstrong\u003esingle source\u003c\/strong\u003e behavior. This approach facilitates acoustic alignment and contributes to a more stable image, especially in close listening or when the speaker is off-axis. The \u003cstrong\u003e100 deg coverage\u003c\/strong\u003e targets comfortable dispersion for varied spaces while maintaining good presence.\u003c\/p\u003e\u003ch4\u003ePower Handling and Sensitivity\u003c\/h4\u003e\u003cp\u003eWith \u003cstrong\u003e500 W AES\u003c\/strong\u003e on the low-frequency section and \u003cstrong\u003e100 W AES\u003c\/strong\u003e on the high-frequency section (impedances \u003cstrong\u003e8 + 8 Ohms\u003c\/strong\u003e ), this coaxial is designed to withstand sustained levels. The specified sensitivities, \u003cstrong\u003e97 dB (LF)\u003c\/strong\u003e and \u003cstrong\u003e104 dB (HF)\u003c\/strong\u003e at 1 W \/ 1 m, allow for an excellent output-to-size ratio, particularly interesting for compact sound reinforcement speakers.\u003c\/p\u003e\u003ch4\u003eMaterials and Professional Reliability\u003c\/h4\u003e\u003cp\u003eThe low-frequency section features a \u003cstrong\u003e51 mm voice coil\u003c\/strong\u003e with \u003cstrong\u003ealuminum wire\u003c\/strong\u003e and a \u003cstrong\u003edual roll surround\u003c\/strong\u003e, a combination focused on robustness and excursion control. The \u003cstrong\u003e6.0 mm Xmax\u003c\/strong\u003e contributes to low-end performance for a 21 cm driver, and the \u003cstrong\u003eQts of 0.27\u003c\/strong\u003e favors efficient alignments in vented enclosures.\u003c\/p\u003e\u003cp\u003eOn the high-frequency side, the HF section relies on a \u003cstrong\u003e44 mm voice coil\u003c\/strong\u003e and a \u003cstrong\u003epolyimide diaphragm\u003c\/strong\u003e, a relevant choice to combine precision and durability. The cone is of \u003cstrong\u003eexponential type\u003c\/strong\u003e with a \u003cstrong\u003ewater-resistant treatment on the front\u003c\/strong\u003e, useful when the speaker is used in demanding conditions (transport, occasional humidity, intensive use).\u003c\/p\u003e\u003ch4\u003eSpeaker Optimization: Recommended Enclosure\u003c\/h4\u003e\u003cp\u003eTo facilitate development, a recommended enclosure is provided: \u003cstrong\u003e15 liters\u003c\/strong\u003e with a \u003cstrong\u003etuning at 75 Hz\u003c\/strong\u003e. This clearly positions the 8CXN51 towards compact speakers capable of delivering clean and fast bass, while leaving the option to add a subwoofer if the application requires more extension below 70 Hz.\u003c\/p\u003e\n\n\u003ch2\u003eTechnical specifications\u003c\/h2\u003e\n\u003cdiv style=\"display:flex;flex-wrap:wrap;gap:2rem\"\u003e\n\u003ctable style=\"flex:1 1 300px;width:100%\"\u003e\n  \u003ctr\u003e\u003ctd style=\"text-align:left\"\u003e\u003cstrong\u003eRackable\u003c\/strong\u003e\u003c\/td\u003e\u003ctd style=\"text-align:left\"\u003eNo\u003c\/td\u003e\u003c\/tr\u003e\n  \u003ctr\u003e\u003ctd style=\"text-align:left\"\u003e\u003cstrong\u003eCategory\u003c\/strong\u003e\u003c\/td\u003e\u003ctd style=\"text-align:left\"\u003esound reinforcement accessory\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ctable style=\"flex:1 1 300px;width:100%\"\u003e\n  \u003ctr\u003e\u003ctd style=\"text-align:left\"\u003e\u003cstrong\u003eType\u003c\/strong\u003e\u003c\/td\u003e\u003ctd style=\"text-align:left\"\u003eSpeakers\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex;flex-wrap:wrap;gap:2rem\"\u003e\n\u003cdiv style=\"flex:1 1 300px\"\u003e\n\u003ctable style=\"width:100%\"\u003e\n  \u003ctr\u003e\u003ctd style=\"text-align:left\"\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\u003ctd style=\"text-align:left\"\u003eB\u0026amp;C 8CXN51\u003c\/td\u003e\u003c\/tr\u003e\n  \u003ctr\u003e\u003ctd style=\"text-align:left\"\u003e\u003cstrong\u003eDiameter\u003c\/strong\u003e\u003c\/td\u003e\u003ctd style=\"text-align:left\"\u003e8\u0026quot; (21 cm) + 0.79\u0026quot;\u003c\/td\u003e\u003c\/tr\u003e\n  \u003ctr\u003e\u003ctd style=\"text-align:left\"\u003e\u003cstrong\u003eCoverage\u003c\/strong\u003e\u003c\/td\u003e\u003ctd style=\"text-align:left\"\u003e100 deg\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ctable style=\"width:100%\"\u003e\n  \u003ctr\u003e\u003ctd style=\"text-align:left\"\u003e\u003cstrong\u003eAES Power\u003c\/strong\u003e\u003c\/td\u003e\u003ctd style=\"text-align:left\"\u003e500 W (LF) + 100 W (HF)\u003c\/td\u003e\u003c\/tr\u003e\n  \u003ctr\u003e\u003ctd style=\"text-align:left\"\u003e\u003cstrong\u003eImpedance\u003c\/strong\u003e\u003c\/td\u003e\u003ctd style=\"text-align:left\"\u003e8 Ohms (LF) + 8 Ohms (HF)\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ctable style=\"width:100%\"\u003e\n  \u003ctr\u003e\u003ctd style=\"text-align:left\"\u003e\u003cstrong\u003eSensitivity\u003c\/strong\u003e\u003c\/td\u003e\u003ctd style=\"text-align:left\"\u003e97 dB (LF)\u003c\/td\u003e\u003c\/tr\u003e\n  \u003ctr\u003e\u003ctd style=\"text-align:left\"\u003e\u003cstrong\u003eFrequency Response\u003c\/strong\u003e\u003c\/td\u003e\u003ctd style=\"text-align:left\"\u003e70 Hz - 18 kHz\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ctable style=\"width:100%\"\u003e\n  \u003ctr\u003e\u003ctd style=\"text-align:left\"\u003e\u003cstrong\u003eMagnet\u003c\/strong\u003e\u003c\/td\u003e\u003ctd style=\"text-align:left\"\u003eneodymium\u003c\/td\u003e\u003c\/tr\u003e\n  \u003ctr\u003e\u003ctd style=\"text-align:left\"\u003e\u003cstrong\u003eLF Voice Coil\u003c\/strong\u003e\u003c\/td\u003e\u003ctd style=\"text-align:left\"\u003e2\u0026quot; (51 mm), aluminum wire\u003c\/td\u003e\u003c\/tr\u003e\n  \u003ctr\u003e\u003ctd style=\"text-align:left\"\u003e\u003cstrong\u003eHF Voice Coil\u003c\/strong\u003e\u003c\/td\u003e\u003ctd style=\"text-align:left\"\u003e1.7\u0026quot; (44 mm)\u003c\/td\u003e\u003c\/tr\u003e\n  \u003ctr\u003e\u003ctd style=\"text-align:left\"\u003e\u003cstrong\u003eDiaphragm\u003c\/strong\u003e\u003c\/td\u003e\u003ctd style=\"text-align:left\"\u003epolyimide\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 300px\"\u003e\n\u003ctable style=\"width:100%\"\u003e\n  \u003ctr\u003e\u003ctd style=\"text-align:left\"\u003e\u003cstrong\u003eFs (LF)\u003c\/strong\u003e\u003c\/td\u003e\u003ctd style=\"text-align:left\"\u003e68 Hz\u003c\/td\u003e\u003c\/tr\u003e\n  \u003ctr\u003e\u003ctd style=\"text-align:left\"\u003e\u003cstrong\u003eQts\u003c\/strong\u003e\u003c\/td\u003e\u003ctd style=\"text-align:left\"\u003e0.27\u003c\/td\u003e\u003c\/tr\u003e\n  \u003ctr\u003e\u003ctd style=\"text-align:left\"\u003e\u003cstrong\u003eXmax\u003c\/strong\u003e\u003c\/td\u003e\u003ctd style=\"text-align:left\"\u003e6.0 mm\u003c\/td\u003e\u003c\/tr\u003e\n  \u003ctr\u003e\u003ctd style=\"text-align:left\"\u003e\u003cstrong\u003eLF Suspension\u003c\/strong\u003e\u003c\/td\u003e\u003ctd style=\"text-align:left\"\u003edual roll\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ctable style=\"width:100%\"\u003e\n  \u003ctr\u003e\u003ctd style=\"text-align:left\"\u003e\u003cstrong\u003eCone\u003c\/strong\u003e\u003c\/td\u003e\u003ctd style=\"text-align:left\"\u003eexponential\u003c\/td\u003e\u003c\/tr\u003e\n  \u003ctr\u003e\u003ctd style=\"text-align:left\"\u003e\u003cstrong\u003eTreatment\u003c\/strong\u003e\u003c\/td\u003e\u003ctd style=\"text-align:left\"\u003ewater-resistant (front)\u003c\/td\u003e\u003c\/tr\u003e\n  \u003ctr\u003e\u003ctd style=\"text-align:left\"\u003e\u003cstrong\u003eTotal Diameter\u003c\/strong\u003e\u003c\/td\u003e\u003ctd style=\"text-align:left\"\u003e225 mm\u003c\/td\u003e\u003c\/tr\u003e\n  \u003ctr\u003e\u003ctd style=\"text-align:left\"\u003e\u003cstrong\u003eHeight\u003c\/strong\u003e\u003c\/td\u003e\u003ctd style=\"text-align:left\"\u003e111 mm\u003c\/td\u003e\u003c\/tr\u003e\n  \u003ctr\u003e\u003ctd style=\"text-align:left\"\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\u003ctd style=\"text-align:left\"\u003e2.5 kg\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ctable style=\"width:100%\"\u003e\n  \u003ctr\u003e\u003ctd style=\"text-align:left\"\u003e\u003cstrong\u003eRecommended Volume\u003c\/strong\u003e\u003c\/td\u003e\u003ctd style=\"text-align:left\"\u003e15 liters\u003c\/td\u003e\u003c\/tr\u003e\n  \u003ctr\u003e\u003ctd style=\"text-align:left\"\u003e\u003cstrong\u003eRecommended Tuning\u003c\/strong\u003e\u003c\/td\u003e\u003ctd style=\"text-align:left\"\u003e75 Hz\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"B\u0026C Speakers","offers":[{"title":"Default Title","offer_id":54359846945043,"sku":"422849","price":272.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/0872\/6803\/files\/65f916ffe6090ddd70506230532a7f2137b60739_MSC_62522.jpg?v=1787370086","url":"https:\/\/woodbrass.shop\/products\/b-c-speakers-8cxn51-422849","provider":"Woodbrass.com","version":"1.0","type":"link"}