{"product_id":"performance-optimized-wedge-sealed-dual-12-enclosure-prodigy-nb5-12","title":"Performance Optimized Wedge Sealed Dual 12\" Enclosure | Prodigy NB5-12","description":"\u003cp\u003eThe \u003cstrong\u003ePerformance Optimized Wedge Sealed Dual 12\" Enclosure for the Prodigy NB5-12\u003c\/strong\u003e is a musical dual-driver sealed cabinet built around Prodigy Audio's flagship 12\" subwoofer. The NB5 Series represents Prodigy's top-tier SQL platform, and this wedge doubles up the driver count in a single trunk-loading cabinet with two separate acoustic chambers.\u003c\/p\u003e\u003cp\u003eThe Prodigy NB5-12 (NB5-12D2 dual 2Ω or NB5-12D4 dual 4Ω) is a 1200-watt RMS subwoofer with 27mm of one-way Xmax at 70% BL, 40mm X-mech forward, and 50mm downward X-mech clearance before soft parts contact hard parts. Motor design features 280 ounces of ferrite, upper and lower aluminum Faraday shorting rings, vented pole with coil-gap radial vents, and a 2.75\" flat-aluminum voice coil. Heavy cast aluminum frame doubles as a heat exchanger.\u003c\/p\u003e\u003cp\u003eThis dual enclosure follows the Proline X standing design rule for dual sealed enclosures: two fully separate chambers divided by a bonded full-height, full-depth 3\/4\" MDF panel, giving each driver its own dedicated air volume and its own terminal cup. This eliminates cross-chamber acoustic coupling and cabin-pressure interference between drivers, delivering the tight, controlled sealed alignment character that individual chambers preserve.\u003c\/p\u003e\u003cp\u003eTotal internal gross volume is 1.76 cubic feet, split into two 0.88 cubic foot chambers. Each chamber lands at 0.67 cubic feet net after 0.21 cubic feet of driver displacement, producing a near-Butterworth alignment per driver with the D4 coil at Qtc 0.71 (essentially textbook maximally-flat sealed) and the D2 coil at Qtc 0.57 (extended musical, approaching Bessel) based on Prodigy's published T\/S parameters. Predicted F3 lands in the 48-58 Hz range per driver depending on coil choice, with dual drivers producing +6 dB of maximum output over a single driver in the same alignment.\u003c\/p\u003e\u003cp\u003eConstruction is the full Proline X Performance Optimized platform: ShopSabre CNC-cut Langboard Elite MDF stack-fab layers, all four corners radiused 3\" viewed top-down, precision-milled magnet cavities for volume tuning and voice-coil cooling on each driver, perimeter cross-bracing, and double-layer 1.5\" front baffles (two 3\/4\" MDF sheets bonded) on both driver positions for maximum baffle rigidity and driver isolation. Wedge geometry angles both cones rear-firing into the trunk at ~20° from vertical for optimum cabin loading. Two independent Proline X ABS\/carbon-fiber composite terminal cups, one per chamber, pre-wired with 12 gauge OFC.\u003c\/p\u003e\u003cp\u003eBring your own pair of Prodigy NB5-12 subwoofers — mount cutouts are direct-fit for either the NB5-12D2 or NB5-12D4. Run both drivers at matched impedance for parallel or series wiring at the amp.\u003c\/p\u003e\u003cp\u003eManufactured in Tullahoma, Tennessee. 1-year enclosure warranty.\u003c\/p\u003e","brand":"Proline X","offers":[{"title":"Default Title","offer_id":44533145698393,"sku":"PO 12D-S W NB5","price":399.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/proline-x-micro-series-dual-15-sealed-enclosure-built-for-resonix-gus-15subwoofer-enclosuresproline-x-9360178_f53d2e94-c1de-46ca-9f18-6a93a9113ae8.jpg?v=1786935885","url":"https:\/\/audiointensity.com\/products\/performance-optimized-wedge-sealed-dual-12-enclosure-prodigy-nb5-12","provider":"Audio Intensity","version":"1.0","type":"link"}