{"product_id":"performance-optimized-down-fire-sealed-10-enclosure-prodigy-nb3-10","title":"Performance Optimized Down Fire Sealed 10\" Enclosure | Prodigy NB3-10","description":"\u003cp\u003eThe \u003cstrong\u003ePerformance Optimized Down Fire Sealed 10\" Enclosure for the Prodigy NB3-10\u003c\/strong\u003e is a low-profile sealed cabinet built around Prodigy Audio's shallow-mount 10\" subwoofer. The NB3 Series exists to solve a depth problem, and this down fire cabinet extends that same logic to the enclosure itself: at 6.25 inches tall it slides into spaces that will not accept a conventional box.\u003c\/p\u003e\u003cp\u003eThe Prodigy NB3-10D4 is a 600-watt RMS dual 4-ohm subwoofer with 11mm of one-way Xmax at 70% BL in a 3.00 inch mounting depth. Motor design features a 70 ounce ferrite magnet, a 2.5\" four-layer copper voice coil on a black aluminum former, and an FEA-designed center pole vent to pull heat out of the gap. Treated paper cone, rubber surround, stamped steel frame, Nomex and cotton blend spider with flat stitched tinsel leads.\u003c\/p\u003e\u003cp\u003eThe 0.76 cubic foot net volume was selected against the driver's published Thiele-Small data rather than a generic 10-inch rule of thumb. The NB3-10 has a small Vas of 14.43 liters against a 36.4 Hz Fs, which means sealed alignment is inherently a low-Qtc proposition on this driver no matter what volume you build. At 0.76 net the system lands at \u003cstrong\u003eQtc 0.526, Fc 47.1 Hz, and a predicted anechoic F3 of 68.1 Hz\u003c\/strong\u003e. That is deliberately on the overdamped side, and it is the correct choice here: shrinking the box to chase a textbook 0.707 alignment would require roughly 0.25 cubic feet net and would raise Fc by 17 Hz to buy back only 5 Hz of extension. The larger cabinet gives the shallower roll-off slope, the tighter impulse response, and the lowest Fc this driver can reach.\u003c\/p\u003e\u003cp\u003eAnechoic F3 is not what you hear in a vehicle. In a down fire orientation coupling into a cabin floor, the gentle 12 dB per octave sealed slope meets rising cabin gain below 60 Hz, and in-car response typically extends well below the anechoic number.\u003c\/p\u003e\u003cp\u003eConstruction is the full Proline X Performance Optimized platform: ShopSabre CNC-cut Langboard Elite MDF with \u003cstrong\u003eV-groove and dado joinery\u003c\/strong\u003e, perimeter cross-bracing, and a \u003cstrong\u003edouble-layer 1.5 inch front baffle\u003c\/strong\u003e (two 3\/4 inch sheets bonded) for maximum baffle rigidity and driver isolation. Corners are square on Down Fire cabinets. The driver fires down into the floor with the terminal cup \u003cstrong\u003eside mounted\u003c\/strong\u003e, keeping the connection accessible with the cabinet in place. Terminal cup is our Proline X ABS\/carbon fiber composite pre-wired with 12 gauge OFC.\u003c\/p\u003e\u003cp\u003eBring your own Prodigy NB3-10D4. Mount cutout is direct-fit.\u003c\/p\u003e\u003cp\u003eManufactured in Tullahoma, Tennessee. 1-year enclosure warranty.\u003c\/p\u003e","brand":"Proline X","offers":[{"title":"Default Title","offer_id":44540037267545,"sku":"PO 10-S DF NB3","price":219.99,"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_3d2682c8-9beb-4069-85ec-52887c7315db.jpg?v=1787100150","url":"https:\/\/audiointensity.com\/products\/performance-optimized-down-fire-sealed-10-enclosure-prodigy-nb3-10","provider":"Audio Intensity","version":"1.0","type":"link"}