Soundqubed HDB2.2 Series 12" Subwoofer 2" DVC 400 Watts RMS D2/D4
Key features
- Subwoofer size: 12.0 inches
- RMS power per subwoofer: 400 W
- Voice-coil options: D2, D4
- Mounting depth: 5.98 in / 152 mm
- Mounting cutout diameter: 11.1 in / 282 mm
- Linear excursion (Xmax): ±10 mm
Soundqubed HDB2.2 Series 12" Subwoofer 2" DVC 400 Watts RMS D2/D4 - Dual 2 Ohm is backordered and will ship as soon as it is back in stock.
Soundqubed HDB2.2 Series 12" Subwoofer 2" DVC 400 Watts RMS D2/D4 - Dual 2 Ohm is backordered and will ship as soon as it is back in stock.
Description
Description
Product Overview
Get a 12-inch subwoofer for daily bass builds with the SoundQubed HDB2.2-12, rated for 400W RMS and available with dual 2-ohm or dual 4-ohm voice coils. Its 2-inch voice coil, 68 oz magnet, and 10mm Xmax support a practical mix of power handling and cone movement.
Choose the coil configuration to match your amplifier’s stable impedance options, then plan a sealed enclosure for tighter bass or a ported enclosure for deeper extension.
Key Features & Benefits
- 400W RMS power handling: Pair it with a mono amplifier rated for 200–400W RMS at the final impedance.
- Dual voice coil options: Select D2 or D4 to suit the impedance choices available from your amplifier.
- 12-inch cone with 515 cm² SD: The specified cone area provides a substantial surface area for moving air.
- 10mm Xmax and 18mm Xmech: These excursion figures help you assess the driver’s cone movement for your build.
- Sealed or ported enclosure guidance: Choose between 1.0–1.5 ft³ sealed or 1.8–3.0 ft³ ported volume.
- Variant-specific T/S parameters: Compare the D2 and D4 figures when planning your subwoofer system.
Technical Specifications
| Parameter | HDB2.2-12D2 | HDB2.2-12D4 |
|---|---|---|
| Woofer Size | 12" | 12" |
| RMS Power | 400W | 400W |
| Peak Power | 800W | 800W |
| Magnet Weight | 68 oz | 68 oz |
| Coil Diameter | 2 in | 2 in |
| Coil Length | 28 mm | 28 mm |
| Fs | 29.7 Hz | 30.4 Hz |
| Impedance | 2+2 Ohm | 4+4 Ohm |
| QMS | 6.58 | 6.14 |
| QES | 0.75 | 0.76 |
| QTS | 0.65 | 0.67 |
| VAS | 52 L | 61.5 L |
| Le | 1.14 mH | 1.57 mH |
| η₀ (No) | 0.18% | 0.20% |
| CMS | 0.149 mm/N | 0.170 mm/N |
| Sensitivity (1W/1m) | 84.8 dB | 85.2 dB |
| BL | 13.54 N/A | 15.8 N/A |
| Xmax (±) | 10 mm | 10 mm |
| Xmech (±) | 18 mm | 18 mm |
| SD | 515 cm² | 515 cm² |
| Model | A | B | C | D |
|---|---|---|---|---|
| HDB2.2-12D2 | 315 mm / 12.4" | 282 mm / 11.1" | 160 mm / 6.3" | 152 mm / 5.98" |
| HDB2.2-12D4 | 315 mm / 12.4" | 282 mm / 11.1" | 160 mm / 6.3" | 152 mm / 5.98" |
| Enclosure Type | HDB2.2-12D2 | HDB2.2-12D4 |
|---|---|---|
| Sealed Enclosure | 1.0–1.5 ft³ | 1.0–1.5 ft³ |
| Ported Enclosure | 1.8–3.0 ft³ | 1.8–3.0 ft³ |
For ported enclosures, the supplied recommendation is to use a port tuned to 28–38 Hz. The HDB2.2-12’s resonant frequency is 29.7 Hz for D2 and 30.4 Hz for D4.
Why Choose This Product?
The HDB2.2-12 gives you two coil configurations to consider when matching a subwoofer to your amplifier. Its D2 version has a 29.7 Hz Fs, while the D4 version has a 30.4 Hz Fs; other T/S values also vary by configuration, so consult the table when designing your system.
Use the listed sealed volume range when your priority is tight, accurate bass. The larger ported range and suggested tuning provide another enclosure approach for builds focused on low-frequency output.
Installation & Compatibility Notes
- Check amplifier impedance: The D2 configuration wires to 1Ω in parallel or 4Ω in series. The D4 configuration wires to 2Ω in parallel or 8Ω in series.
- Match amplifier output: Target 200–400W RMS at your chosen final impedance, and confirm the amplifier is stable at that load.
- Allow for mounting dimensions: Review the listed A, B, C, and D measurements against your available installation space.
- Plan enclosure volume: Use 1.0–1.5 ft³ for sealed or 1.8–3.0 ft³ for ported enclosure planning.
Frequently Asked Questions
How much amplifier power does the HDB2.2-12 handle?
It is rated at 400W RMS and 800W peak. The supplied amplifier recommendation is 200–400W RMS at the final impedance.
What final impedances can I wire each version to?
The D2 can be wired to 1Ω in parallel or 4Ω in series. The D4 can be wired to 2Ω in parallel or 8Ω in series.
What enclosure volume should I plan for?
The recommended sealed volume is 1.0–1.5 ft³. For a ported enclosure, the recommendation is 1.8–3.0 ft³ with a port tuned to 28–38 Hz.
Do the D2 and D4 versions have the same specifications?
Both versions share the listed power ratings and mounting dimensions, but some T/S values differ. For example, Fs is 29.7 Hz for D2 and 30.4 Hz for D4.
Explore More
Shop SoundQubed products at 12 Volt Outlet. Want to learn more about SoundQubed? Explore our SoundQubed brand profile.
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Suggestions use 75–125% of the subwoofer’s RMS rating at the wiring load shown. Check wiring, enclosure needs, electrical capacity and installation space. Set gain and filters correctly to avoid overpowering the subwoofer. Buying more than one subwoofer changes the match.
