{"product_id":"soundqubed-hdb2-2-series-12-subwoofer-2-dvc-400-watts-rms-d2-d4","title":"Soundqubed HDB2.2 Series 12\" Subwoofer 2\" DVC 400 Watts RMS D2\/D4","description":"\u003ch2\u003e\n\u003cstrong\u003eSoundQubed HDB2.2-12\u003c\/strong\u003e — 12\" Subwoofer | 400W RMS | Dual 2 or Dual 4 Ohm\u003c\/h2\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eSoundQubed HDB2.2-12\u003c\/strong\u003e is a full-size 12\" subwoofer built for enthusiasts who want deep, authoritative bass at an accessible price point. Rated at \u003cstrong\u003e400W RMS \/ 800W Peak\u003c\/strong\u003e, this driver delivers the kind of ground-shaking low-end you expect from a 12\" platform — with a resonant frequency as low as 29.7 Hz (D2) that reaches into true sub-bass territory. With sensitivity of 84.8 dB (D2) \/ 85.2 dB (D4), the HDB2.2-12 is one of the most efficient drivers in its class, delivering impressive output even with modest amplifier power.\u003c\/p\u003e\n\n\u003cp\u003eThe motor assembly features a \u003cstrong\u003e68 oz magnet\u003c\/strong\u003e and a \u003cstrong\u003e2\" dual voice coil\u003c\/strong\u003e wound to 28mm, providing solid thermal management and dependable power handling for daily use. The \u003cstrong\u003e10mm Xmax\u003c\/strong\u003e (18mm Xmech) delivers controlled linear excursion for clean bass at moderate output levels, while the massive 515 cm² cone area (SD) moves serious air for deep, room-filling sub-bass. Available in \u003cstrong\u003eDual 2 Ohm\u003c\/strong\u003e and \u003cstrong\u003eDual 4 Ohm\u003c\/strong\u003e configurations, the HDB2.2-12 wires to 1Ω, 2Ω, or 4Ω to match a wide range of mono amplifiers.\u003c\/p\u003e\n\n\u003cp\u003eThe HDB2.2-12 performs beautifully in sealed enclosures from \u003cstrong\u003e1.0–1.5 ft³\u003c\/strong\u003e for tight, accurate bass, or ported boxes from \u003cstrong\u003e1.8–3.0 ft³\u003c\/strong\u003e for maximum output and deep low-frequency extension. Whether you’re building a budget-friendly daily driver system, a clean SQL build, or a first competition setup, the HDB2.2-12 delivers real performance at a price that makes sense. Pair it with a 200–400W RMS mono amplifier for best results.\u003c\/p\u003e\n\n\u003ch2\u003eWhy Choose the SoundQubed HDB2.2-12?\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003e400W RMS \/ 800W Peak Power Handling\u003c\/strong\u003e — Right-sized power for daily driver and budget SQL builds with a full 12\" platform.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e68 oz Magnet Structure\u003c\/strong\u003e — Solid motor delivering reliable BL force and controlled cone movement for consistent daily performance.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e2\" Dual Voice Coil (28mm Wind)\u003c\/strong\u003e — Dual coil design provides wiring flexibility and improved heat dissipation for sustained daily use.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e10mm Xmax \/ 18mm Xmech\u003c\/strong\u003e — Controlled linear excursion for clean, accurate bass at everyday listening levels.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e29.7 Hz Resonant Frequency (D2)\u003c\/strong\u003e — Exceptionally low Fs for a budget 12\", reaching deep into sub-bass territory for full, authoritative low-end.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e84.8–85.2 dB Sensitivity\u003c\/strong\u003e — Among the highest sensitivity ratings in its class — delivers impressive output with modest amplifier power.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e515 cm² Cone Area (SD)\u003c\/strong\u003e — Massive piston area moves serious air for deep, room-filling sub-bass output.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSoundQubed HDB2.2 Series Value\u003c\/strong\u003e — Quality construction and real-world performance at an accessible price point that won’t break the budget.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eAmplifier \u0026amp; Enclosure Recommendations\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eAmplifier Pairing:\u003c\/strong\u003e The HDB2.2-12 is rated at 400W RMS, so target a mono amplifier delivering \u003cstrong\u003e200–400W RMS\u003c\/strong\u003e at your chosen final impedance. The \u003cstrong\u003eDual 2 Ohm\u003c\/strong\u003e variant wires to \u003cstrong\u003e1Ω\u003c\/strong\u003e (parallel) or \u003cstrong\u003e4Ω\u003c\/strong\u003e (series). The \u003cstrong\u003eDual 4 Ohm\u003c\/strong\u003e variant wires to \u003cstrong\u003e2Ω\u003c\/strong\u003e (parallel) or \u003cstrong\u003e8Ω\u003c\/strong\u003e (series). For most daily builds, wiring the D2 to 2Ω or the D4 to 2Ω gives you the best balance of power and amplifier stability. A 300–400W RMS mono block at 2Ω is the sweet spot for this driver.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eEnclosure:\u003c\/strong\u003e For \u003cstrong\u003esealed\u003c\/strong\u003e installs, target \u003cstrong\u003e1.0–1.5 ft³\u003c\/strong\u003e net internal volume for tight, accurate bass with excellent transient response — ideal for rock, country, and acoustic genres. For \u003cstrong\u003eported\u003c\/strong\u003e builds, use \u003cstrong\u003e1.8–3.0 ft³\u003c\/strong\u003e net with a port tuned to 28–38 Hz for maximum output and deep low-frequency extension — the go-to for hip-hop, EDM, and bass-heavy content. The HDB2.2-12’s low 29.7 Hz Fs and high sensitivity make it especially rewarding in a well-built ported enclosure.\u003c\/p\u003e\n\n\u003ch2\u003eFull Specifications — T\/S 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\u003e\n      \u003cth style=\"background-color:#222;color:#fff;padding:8px;text-align:left;\"\u003eParameter\u003c\/th\u003e\n      \u003cth style=\"background-color:#222;color:#fff;padding:8px;text-align:center;\"\u003eHDB2.2-12D2\u003c\/th\u003e\n      \u003cth style=\"background-color:#222;color:#fff;padding:8px;text-align:center;\"\u003eHDB2.2-12D4\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr style=\"background-color:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003eWoofer Size\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e12\"\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e12\"\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px;\"\u003eRMS Power\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e400W\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e400W\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background-color:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003ePeak Power\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e800W\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e800W\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px;\"\u003eMagnet Weight\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e68 oz\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e68 oz\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background-color:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003eCoil Diameter\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e2 in\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e2 in\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px;\"\u003eCoil Length\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e28 mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e28 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background-color:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003eFs\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e29.7 Hz\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e30.4 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px;\"\u003eImpedance\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e2+2 Ohm\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e4+4 Ohm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background-color:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003eQMS\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e6.58\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e6.14\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px;\"\u003eQES\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e0.75\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e0.76\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background-color:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003eQTS\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e0.65\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e0.67\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px;\"\u003eVAS\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e52 L\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e61.5 L\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background-color:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003eLe\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e1.14 mH\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e1.57 mH\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px;\"\u003eη₀ (No)\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e0.18%\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e0.20%\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background-color:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003eCMS\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e0.149 mm\/N\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e0.170 mm\/N\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px;\"\u003eSensitivity (1W\/1m)\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e84.8 dB\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e85.2 dB\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background-color:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003eBL\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e13.54 N\/A\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e15.8 N\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px;\"\u003eXmax (±)\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e10 mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e10 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background-color:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003eXmech (±)\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e18 mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e18 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px;\"\u003eSD\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e515 cm²\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e515 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\u003e\n      \u003cth style=\"background-color:#222;color:#fff;padding:8px;text-align:left;\"\u003eModel\u003c\/th\u003e\n      \u003cth style=\"background-color:#222;color:#fff;padding:8px;text-align:center;\"\u003eA\u003c\/th\u003e\n      \u003cth style=\"background-color:#222;color:#fff;padding:8px;text-align:center;\"\u003eB\u003c\/th\u003e\n      \u003cth style=\"background-color:#222;color:#fff;padding:8px;text-align:center;\"\u003eC\u003c\/th\u003e\n      \u003cth style=\"background-color:#222;color:#fff;padding:8px;text-align:center;\"\u003eD\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr style=\"background-color:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003eHDB2.2-12D2\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e315 mm \/ 12.4\"\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e282 mm \/ 11.1\"\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e160 mm \/ 6.3\"\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e152 mm \/ 5.98\"\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px;\"\u003eHDB2.2-12D4\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e315 mm \/ 12.4\"\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e282 mm \/ 11.1\"\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e160 mm \/ 6.3\"\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e152 mm \/ 5.98\"\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\u003e\n      \u003cth style=\"background-color:#222;color:#fff;padding:8px;text-align:left;\"\u003eEnclosure Type\u003c\/th\u003e\n      \u003cth style=\"background-color:#222;color:#fff;padding:8px;text-align:center;\"\u003eHDB2.2-12D2\u003c\/th\u003e\n      \u003cth style=\"background-color:#222;color:#fff;padding:8px;text-align:center;\"\u003eHDB2.2-12D4\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr style=\"background-color:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003eSealed Enclosure\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e1.0–1.5 ft³\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e1.0–1.5 ft³\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px;\"\u003ePorted Enclosure\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e1.8–3.0 ft³\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e1.8–3.0 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\n\u003cp\u003e\u003cstrong\u003eQ: What amplifier should I pair with the HDB2.2-12?\u003c\/strong\u003e\u003cbr\u003e\nA: Target a mono amplifier rated at \u003cstrong\u003e200–400W RMS\u003c\/strong\u003e at your final impedance. Wire the D2 to 1Ω or 4Ω, or the D4 to 2Ω or 8Ω. A 300–400W RMS mono block at 2Ω is the sweet spot for most daily and SQL builds.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: What’s the difference between the D2 and D4 versions?\u003c\/strong\u003e\u003cbr\u003e\nA: Both handle the same power and share identical physical specs. The \u003cstrong\u003eD2 (Dual 2 Ohm)\u003c\/strong\u003e wires to 1Ω or 4Ω; the \u003cstrong\u003eD4 (Dual 4 Ohm)\u003c\/strong\u003e wires to 2Ω or 8Ω. Choose based on your amplifier’s stable impedance rating. Note the D2 also has a slightly lower Fs (29.7 Hz vs 30.4 Hz) for marginally deeper extension.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: What box size does the HDB2.2-12 need?\u003c\/strong\u003e\u003cbr\u003e\nA: Sealed: \u003cstrong\u003e1.0–1.5 ft³\u003c\/strong\u003e for tight, accurate bass. Ported: \u003cstrong\u003e1.8–3.0 ft³\u003c\/strong\u003e tuned to 28–38 Hz for maximum output and deep extension. The large ported range gives you flexibility to build for your specific vehicle and listening preferences.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Is this sub good for daily use or competition?\u003c\/strong\u003e\u003cbr\u003e\nA: The HDB2.2-12 is an excellent \u003cstrong\u003edaily driver sub\u003c\/strong\u003e and a solid entry point for budget SQL builds. Its 29.7 Hz Fs, 85 dB+ sensitivity, and 515 cm² SD make it one of the most capable budget 12\" drivers available — delivering output and extension that punches well above its price class.\u003c\/p\u003e","brand":"SoundQubed","offers":[{"title":"Dual 2 Ohm","offer_id":43672834146371,"sku":null,"price":179.95,"currency_code":"USD","in_stock":true},{"title":"Dual 4 Ohm","offer_id":43672834179139,"sku":null,"price":179.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0637\/9575\/7123\/files\/SoundqubedHDB212inchsubwooferfront.png?v=1786724990","url":"https:\/\/www.trinitycaraudio.com\/products\/soundqubed-hdb2-2-series-12-subwoofer-2-dvc-400-watts-rms-d2-d4","provider":"Trinity Car Audio","version":"1.0","type":"link"}