{"product_id":"performance-optimized-down-fire-sealed-12-enclosure-rockford-fosgate-punch-p3-shallow","title":"Performance Optimized Down Fire Sealed 12\" Enclosure | Rockford Fosgate Punch P3 Shallow","description":"\u003cp\u003eThe \u003cstrong\u003ePerformance Optimized Down Fire Sealed 12\" Enclosure for the Rockford Fosgate Punch P3 Shallow\u003c\/strong\u003e is a low-profile sealed cabinet built around Rockford's shallow-mount P3S 12\" subwoofer. At 7.875 inches tall on a 30 by 15 inch footprint, it puts a full 12 into cargo wells and under-seat spaces that normally cap out at a 10.\u003c\/p\u003e\u003cp\u003eThe P3 Shallow 12 comes as the \u003cstrong\u003eP3SD2-12\u003c\/strong\u003e (dual 2Ω) or \u003cstrong\u003eP3SD4-12\u003c\/strong\u003e (dual 4Ω), both rated 400 watts RMS with 8.4mm of one-way Xmax in a 3.65 inch mounting depth. A 2.5 inch four-layer voice coil sits behind an anodized aluminum cone with Rockford's VAST surface technology, and the driver ships with a painted aluminum trim ring. Both models share the same 11.22 inch cutout, 3.65 inch depth, and 0.086 cubic foot displacement, so this cabinet is direct fit for either impedance.\u003c\/p\u003e\u003cp\u003eThe 1.12 cubic foot net volume sits near the top of Rockford's published sealed range for this driver. The P3SD2-12 lands at \u003cstrong\u003eQtc 0.974 with F3 at 39.4 Hz\u003c\/strong\u003e, the P3SD4-12 at \u003cstrong\u003eQtc 1.047 with F3 at 38.1 Hz\u003c\/strong\u003e, computed from Rockford's published Thiele-Small parameters.\u003c\/p\u003e\u003cp\u003eThe 12 is the better low-frequency driver of the two P3 Shallow sizes by a clear margin. Free-air resonance is 34 Hz against the 10's 40 Hz, and Vas is 1.25 cubic feet against 0.50. That combination is what lets it reach a 38 Hz F3 in a cabinet under 8 inches tall. If you have the vertical clearance, this is the one to build.\u003c\/p\u003e\u003cp\u003eThe two coil options are closer together on the 12 than on the 10. Qts is 0.67 on the D2 and 0.72 on the D4, so both land near unity Qtc with a modest lift at the corner frequency and similar extension. Choose based on what load your amplifier wants rather than on alignment.\u003c\/p\u003e\u003cp\u003eFiring down into the floor, the sealed rolloff meets rising cabin gain below 60 Hz, and in-car response extends well below the anechoic figures above.\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 P3SD2-12 or P3SD4-12. Both are dual voice coil, so you set your final impedance by how you wire the coils at the driver.\u003c\/p\u003e\u003cp\u003eManufactured in Tullahoma, Tennessee. 1-year enclosure warranty.\u003c\/p\u003e","brand":"Proline X","offers":[{"title":"Default Title","offer_id":44540175056985,"sku":"PO 12-S DF P3S","price":249.99,"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_250cd0c7-e46a-4c72-8232-b49d6b47164b.jpg?v=1787104220","url":"https:\/\/audiointensity.com\/products\/performance-optimized-down-fire-sealed-12-enclosure-rockford-fosgate-punch-p3-shallow","provider":"Audio Intensity","version":"1.0","type":"link"}