{"product_id":"hivi-b4n-4-inch-aluminum-midbass-woofer-includes-install-kit","title":"HiVi B4N 4 Inch Midbass Woofer — Includes Install Kit","description":"\u003ch2\u003e\u003cspan style=\"color: rgb(40, 140, 204);\"\u003eHiVi B4N 4 Inch Midbass Woofer — With Installation Kit.\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003eThe HiVi B4N is a well known driver in the DIY speaker community, mostly famous as the midbass unit in Paul Carmody’s Overnight Sensations bookshelf speaker. It features that distinctive bronze-anodized aluminum cone giving it a striking look with and a punchy, controlled low-end performance. Speaker builders often choose this 4-inch driver because its smooth, well-behaved frequency response makes crossover design straightforward, allowing it to easily blend with a variety of tweeters without complex crossover networks.\u003c\/p\u003e\n\u003cp\u003eTo save you a trip to the hardware store, we include a custom-matched Installation Kit at no extra charge so you can start building immediately. Each B4N woofer you buy comes with a pre-cut gasket, two gold plated quick connect terminals (part 69-514), and four bronze colored screws (part 69-222) for free.\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan style=\"color: rgb(40, 140, 204);\"\u003eHighlights\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eProven Performance:\u003c\/strong\u003e The exact driver used in the highly popular Overnight Sensations speaker kit and many other bookshelf designs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRigid Aluminum Cone:\u003c\/strong\u003e Bronze-anodized aluminum delivers clean midbass punch and clear midrange while minimizing cone breakup.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSmooth Frequency Response:\u003c\/strong\u003e A smooth roll-off simplifies crossover design for both beginner and experienced builders.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptimized Motor Structure:\u003c\/strong\u003e Linear suspension system, rubber surround, and shielded motor allow for clean excursion and flexible enclosure placement.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComplete Installation Kit Included:\u003c\/strong\u003e Ships with the exact matching mounting screws and quick-connect wire terminals needed to start your build immediately.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cstyle\u003e\ntable {\n  font-family: Arial, sans-serif;\n  border-collapse: collapse;\n  width: 100%;\n}\n\ntd, th {\n  border: 1px solid #dddddd;\n  text-align: left;\n  padding: 8px;\n}\n\ntr:nth-child(even) {\n  background-color: #f5f5f5;\n}\n\u003c\/style\u003e\n\u003ch3\u003e\u003cspan style=\"color: rgb(40, 140, 204);\"\u003eHiVi B4N Specifications\u003c\/span\u003e\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth style=\"width: 40%;\"\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eHiVi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eB4N\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Diameter\u003c\/td\u003e\n\u003ctd\u003e4 Inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCone Material\u003c\/td\u003e\n\u003ctd\u003eAluminum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eImpedance\u003c\/td\u003e\n\u003ctd\u003e8 Ohm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Handling (RMS)\u003c\/td\u003e\n\u003ctd\u003e25 watts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Handling (MAX)\u003c\/td\u003e\n\u003ctd\u003e50 watts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSensitivity\u003c\/td\u003e\n\u003ctd\u003e85.5dB (2.83v\/1m)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrequency Response\u003c\/td\u003e\n\u003ctd\u003e60 - 4000 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutside Diameter\u003c\/td\u003e\n\u003ctd\u003e116.5mm (4.59 inches)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCutout Diameter\u003c\/td\u003e\n\u003ctd\u003e93mm (3.66 inches)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting Depth\u003c\/td\u003e\n\u003ctd\u003e73mm (2.85 inches)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e2 pounds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cstyle\u003e\ntable {\n  font-family: Arial, sans-serif;\n  border-collapse: collapse;\n  width: 100%;\n}\n\ntd, th {\n  border: 1px solid #dddddd;\n  text-align: left;\n  padding: 8px;\n}\n\ntr:nth-child(even) {\n  background-color: #f5f5f5;\n}\n\u003c\/style\u003e\n\u003ch3\u003e\u003cspan style=\"color: rgb(40, 140, 204);\"\u003eThiele-Small Parameters\u003c\/span\u003e\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth style=\"width: 40%;\"\u003eParameter\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResonant Frequency (Fs)\u003c\/td\u003e\n\u003ctd\u003e56 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDC Resistance (Re)\u003c\/td\u003e\n\u003ctd\u003e6.5 Ω\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoice Coil Inductance (Le)\u003c\/td\u003e\n\u003ctd\u003e0.20 mH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompliance Eq. Volume (Vas)\u003c\/td\u003e\n\u003ctd\u003e0.16ft³\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMechanical Q (Qms)\u003c\/td\u003e\n\u003ctd\u003e3.91\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eElectrical Q (Qes)\u003c\/td\u003e\n\u003ctd\u003e0.63\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTotal Q (Qts)\u003c\/td\u003e\n\u003ctd\u003e0.52\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBL Product (BL)\u003c\/td\u003e\n\u003ctd\u003e5.1 T·m\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Linear Excursion (Xmax)\u003c\/td\u003e\n\u003ctd\u003e3.2 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEffective Cone Area (Sd)\u003c\/td\u003e\n\u003ctd\u003e53 cm²\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"HiVi","offers":[{"title":"Default Title","offer_id":71191154721021,"sku":"57-100","price":16.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0679\/3723\/9293\/files\/HiVi-B4N-Woofer.jpg?v=1787779413","url":"https:\/\/www.cinergyaudio.com\/products\/hivi-b4n-4-inch-aluminum-midbass-woofer-includes-install-kit","provider":"Cinergy Audio","version":"1.0","type":"link"}