{"product_id":"soundqubed-hds3-3-series-12-subwoofer-1-500-watts-rms-d2-d4","title":"Soundqubed HDS3.3 Series 12\" Subwoofer 1,500 Watts RMS D2\/D4","description":"\u003ch2\u003e\u003cstrong\u003eSoundQubed HDS3.3-12 — 1,500W RMS Daily\/SQL 12\" Subwoofer\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eSoundQubed HDS3.3 Series 12\" subwoofer\u003c\/strong\u003e is a high-value, daily-driver and SQL-focused 12-inch subwoofer built for enthusiasts who want deep, accurate sub-bass with a larger cone area and more low-end authority than a 10\". Rated at \u003cstrong\u003e1,500 watts RMS and 3,000 watts peak\u003c\/strong\u003e, the HDS3.3-12 is powered by a \u003cstrong\u003e160 oz magnet\u003c\/strong\u003e, a \u003cstrong\u003e3-inch diameter voice coil\u003c\/strong\u003e with a 40mm coil length, and a motor assembly tuned for controlled excursion and musical accuracy. Available in \u003cstrong\u003eDual 2 Ohm (D2)\u003c\/strong\u003e and \u003cstrong\u003eDual 4 Ohm (D4)\u003c\/strong\u003e configurations, this sub wires cleanly into a wide range of mono block amplifiers — making it an ideal choice for daily builds, SQL setups, and budget-conscious high-output systems.\u003c\/p\u003e\n\n\u003cp\u003eWith an \u003cstrong\u003eXmax of 13mm (±)\u003c\/strong\u003e and \u003cstrong\u003eXmech of 27mm (±)\u003c\/strong\u003e, the HDS3.3-12 delivers controlled linear cone travel across its \u003cstrong\u003e530 cm² cone area (SD)\u003c\/strong\u003e, producing clean sub-bass extension down to a \u003cstrong\u003efree-air resonance (Fs) of 26.6 Hz (D2) \/ 33.2 Hz (D4)\u003c\/strong\u003e. With sensitivity ratings of \u003cstrong\u003e83.3 dB\u003c\/strong\u003e on both configurations, this woofer is tuned for musical accuracy and daily listening — delivering tight, punchy bass that sounds great on every genre.\u003c\/p\u003e\n\n\u003ch2\u003eWhy Choose the SoundQubed HDS3.3-12?\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e1,500W RMS \/ 3,000W Peak Power:\u003c\/strong\u003e Plenty of headroom for daily and SQL builds — pairs perfectly with mid-range mono block amplifiers in the 500–1,500W range.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e160 oz Magnet Assembly:\u003c\/strong\u003e Solid motor force delivers BL of 19.7 N\/A (D2) \/ 21.5 N\/A (D4) for controlled, accurate cone movement across the full excursion range.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3\" Voice Coil, 40mm Coil Length:\u003c\/strong\u003e Larger coil diameter improves thermal management for sustained daily use without voice coil fatigue.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e13mm Xmax \/ 27mm Xmech:\u003c\/strong\u003e Well-tuned excursion for a 12\" daily driver — deep, clean bass without over-excursion at moderate power levels.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual 2 Ohm \u0026amp; Dual 4 Ohm Available:\u003c\/strong\u003e Wire D2 to 1Ω or 4Ω, wire D4 to 2Ω or 8Ω — compatible with a wide range of amplifier impedance ratings.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow Fs (26.6 Hz D2):\u003c\/strong\u003e Tuned for deep sub-bass reproduction — works great in both sealed and ported enclosures.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSealed or Ported Compatible:\u003c\/strong\u003e Recommended sealed volume 0.75–1.5 ft³ and ported 1.0–1.75 ft³ — versatile for any install.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e530 cm² Cone Area:\u003c\/strong\u003e More cone area than the 10\" for greater air displacement and deeper, fuller bass at the same power level.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eAmplifier \u0026amp; Enclosure Recommendations\u003c\/h2\u003e\n\u003cp\u003eThe HDS3.3-12 pairs best with a \u003cstrong\u003emono block amplifier\u003c\/strong\u003e rated between 500–1,500W RMS at your wired impedance. For the \u003cstrong\u003eD2 (Dual 2 Ohm)\u003c\/strong\u003e variant, wire the coils in parallel for a \u003cstrong\u003e1Ω final load\u003c\/strong\u003e or in series for \u003cstrong\u003e4Ω\u003c\/strong\u003e. For the \u003cstrong\u003eD4 (Dual 4 Ohm)\u003c\/strong\u003e variant, wire in parallel for \u003cstrong\u003e2Ω\u003c\/strong\u003e or in series for \u003cstrong\u003e8Ω\u003c\/strong\u003e. A Class D mono amp stable at 1Ω or 2Ω is the most common pairing for this driver.\u003c\/p\u003e\n\u003cp\u003eFor enclosures, a \u003cstrong\u003esealed box in the 0.75–1.5 ft³ range\u003c\/strong\u003e delivers tight, accurate bass ideal for SQL and daily listening. A \u003cstrong\u003eported box in the 1.0–1.75 ft³ range\u003c\/strong\u003e tuned to approximately 28–34 Hz will add more low-end extension and output for those who want a louder, deeper presentation.\u003c\/p\u003e\n\n\u003ch2\u003eElectro Acoustic Specifications \u0026amp; Thiele Small Parameters\u003c\/h2\u003e\n\u003cdiv style=\"overflow-x:auto;\"\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;font-size:14px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color:#222;color:#fff;\"\u003e\n\u003cth style=\"padding:8px;border:1px solid #ccc;text-align:left;\"\u003eSpecification\u003c\/th\u003e\n\u003cth style=\"padding:8px;border:1px solid #ccc;text-align:center;\"\u003eHDS3.3-12D2\u003c\/th\u003e\n\u003cth style=\"padding:8px;border:1px solid #ccc;text-align:center;\"\u003eHDS3.3-12D4\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eWoofer Size\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ccc;text-align:center;\"\u003e12\"\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ccc;text-align:center;\"\u003e12\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eRMS Power\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ccc;text-align:center;\"\u003e1,500 W\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ccc;text-align:center;\"\u003e1,500 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003ePeak Power\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ccc;text-align:center;\"\u003e3,000 W\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ccc;text-align:center;\"\u003e3,000 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eMagnet Weight\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ccc;text-align:center;\"\u003e160 oz\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ccc;text-align:center;\"\u003e160 oz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eCoil Diameter\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ccc;text-align:center;\"\u003e3 in\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ccc;text-align:center;\"\u003e3 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eCoil Length\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ccc;text-align:center;\"\u003e40 mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ccc;text-align:center;\"\u003e40 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eFs\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ccc;text-align:center;\"\u003e26.6 Hz\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ccc;text-align:center;\"\u003e33.2 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eImpedance\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ccc;text-align:center;\"\u003e2+2 Ohm\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ccc;text-align:center;\"\u003e4+4 Ohm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eQMS\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ccc;text-align:center;\"\u003e6.49\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ccc;text-align:center;\"\u003e6.37\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eQES\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ccc;text-align:center;\"\u003e0.61\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ccc;text-align:center;\"\u003e0.74\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eQTS\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ccc;text-align:center;\"\u003e0.56\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ccc;text-align:center;\"\u003e0.66\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eVAS\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ccc;text-align:center;\"\u003e36.3 L\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ccc;text-align:center;\"\u003e34.5 L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eLe\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ccc;text-align:center;\"\u003e2.46 mH\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ccc;text-align:center;\"\u003e3.43 mH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eη (No)\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ccc;text-align:center;\"\u003e0.11%\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ccc;text-align:center;\"\u003e0.16%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eCMS\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ccc;text-align:center;\"\u003e0.09 mm\/N\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ccc;text-align:center;\"\u003e0.09 mm\/N\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eSensitivity (1W\/1M)\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ccc;text-align:center;\"\u003e83.3 dB\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ccc;text-align:center;\"\u003e83.3 dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eBL\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ccc;text-align:center;\"\u003e19.7 N\/A\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ccc;text-align:center;\"\u003e21.5 N\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eXmax (±)\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ccc;text-align:center;\"\u003e13 mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ccc;text-align:center;\"\u003e13 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eXmech (±)\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ccc;text-align:center;\"\u003e27 mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ccc;text-align:center;\"\u003e27 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eSD\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ccc;text-align:center;\"\u003e530 cm²\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ccc;text-align:center;\"\u003e530 cm²\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eMounting Dimensions\u003c\/h2\u003e\n\u003cdiv style=\"overflow-x:auto;\"\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;font-size:14px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color:#222;color:#fff;\"\u003e\n\u003cth style=\"padding:8px;border:1px solid #ccc;text-align:left;\"\u003eModel\u003c\/th\u003e\n\u003cth style=\"padding:8px;border:1px solid #ccc;text-align:center;\"\u003eA\u003c\/th\u003e\n\u003cth style=\"padding:8px;border:1px solid #ccc;text-align:center;\"\u003eB\u003c\/th\u003e\n\u003cth style=\"padding:8px;border:1px solid #ccc;text-align:center;\"\u003eC\u003c\/th\u003e\n\u003cth style=\"padding:8px;border:1px solid #ccc;text-align:center;\"\u003eD\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eHDS3.3-12D2\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ccc;text-align:center;\"\u003e325 mm \/ 12.8\"\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ccc;text-align:center;\"\u003e290 mm \/ 11.42\"\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ccc;text-align:center;\"\u003e186 mm \/ 7.32\"\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ccc;text-align:center;\"\u003e210 mm \/ 8.27\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eHDS3.3-12D4\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ccc;text-align:center;\"\u003e325 mm \/ 12.8\"\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ccc;text-align:center;\"\u003e290 mm \/ 11.42\"\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ccc;text-align:center;\"\u003e186 mm \/ 7.32\"\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ccc;text-align:center;\"\u003e210 mm \/ 8.27\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eEnclosure Suggestions\u003c\/h2\u003e\n\u003cdiv style=\"overflow-x:auto;\"\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;font-size:14px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color:#222;color:#fff;\"\u003e\n\u003cth style=\"padding:8px;border:1px solid #ccc;text-align:left;\"\u003eEnclosure Type\u003c\/th\u003e\n\u003cth style=\"padding:8px;border:1px solid #ccc;text-align:center;\"\u003eHDS3.3-12 D2\/D4\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eSealed Enclosure\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ccc;text-align:center;\"\u003e0.75–1.5 ft³\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003ePorted Enclosure\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ccc;text-align:center;\"\u003e1.0–1.75 ft³\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWhat amplifier do I need for the SoundQubed HDS3.3-12?\u003c\/strong\u003e\u003cbr\u003eA mono block amplifier rated between \u003cstrong\u003e500–1,500W RMS\u003c\/strong\u003e at your wired impedance is ideal. The D2 wired to 1Ω or the D4 wired to 2Ω are the most common pairings. Any quality Class D mono amp stable at 1Ω or 2Ω will work great.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eShould I choose the D2 or D4 version?\u003c\/strong\u003e\u003cbr\u003eChoose \u003cstrong\u003eD2 (Dual 2 Ohm)\u003c\/strong\u003e if your amplifier is stable at 1Ω (parallel) or 4Ω (series). Choose \u003cstrong\u003eD4 (Dual 4 Ohm)\u003c\/strong\u003e if your amp is stable at 2Ω (parallel) or 8Ω (series). D2 is the most common choice for single-sub builds.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat size box does the HDS3.3-12 need?\u003c\/strong\u003e\u003cbr\u003eFor \u003cstrong\u003esealed\u003c\/strong\u003e, use \u003cstrong\u003e0.75–1.5 ft³\u003c\/strong\u003e for tight, accurate daily bass. For \u003cstrong\u003eported\u003c\/strong\u003e, use \u003cstrong\u003e1.0–1.75 ft³\u003c\/strong\u003e tuned to approximately 28–34 Hz for more output and low-end extension.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs the HDS3.3-12 good for daily use?\u003c\/strong\u003e\u003cbr\u003eAbsolutely — the HDS3.3 Series is specifically designed for daily driving and SQL builds. Its 3\" voice coil, 160 oz magnet, and 530 cm² cone area deliver fuller, deeper bass than the 10\" while remaining a reliable, musical sub for everyday listening.\u003c\/p\u003e","brand":"SoundQubed","offers":[{"title":"Dual 2 Ohm","offer_id":43670149136451,"sku":null,"price":349.95,"currency_code":"USD","in_stock":true},{"title":"Dual 4 Ohm","offer_id":43670149169219,"sku":null,"price":349.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0637\/9575\/7123\/files\/soundqubedhds3.312trinitycaraudio2.png?v=1786661503","url":"https:\/\/www.trinitycaraudio.com\/products\/soundqubed-hds3-3-series-12-subwoofer-1-500-watts-rms-d2-d4","provider":"Trinity Car Audio","version":"1.0","type":"link"}