Soundqubed HDS3.3 Series 12" Subwoofer 1,500 Watts RMS D2/D4
Key features
- Subwoofer size: 12.0 inches
- RMS power per subwoofer: 1500 W
- Voice-coil options: D2, D4
- Mounting depth: 8.27 in / 210 mm
- Mounting cutout diameter: 11.42 in / 290 mm
- Linear excursion (Xmax): ±13 mm
Soundqubed HDS3.3 Series 12" Subwoofer 1,500 Watts RMS D2/D4 - Dual 2 Ohm is backordered and will ship as soon as it is back in stock.
Soundqubed HDS3.3 Series 12" Subwoofer 1,500 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 deep, musical bass for daily listening with the SoundQubed HDS3.3-12 12-inch subwoofer. It handles 1,500 watts RMS and 3,000 watts peak, with Dual 2 Ohm and Dual 4 Ohm versions for different amplifier loads.
Choose the sealed or ported enclosure range that suits your build. The 530 cm² cone area and 13 mm Xmax support a substantial low-frequency sound in a 12-inch format.
Key Features & Benefits
- 1,500 watts RMS power handling: Match it with a mono amplifier rated between 500–1,500 watts RMS at the final wired impedance.
- D2 and D4 versions: Select the coil configuration that works with your amplifier’s supported load.
- 3-inch voice coil and 40 mm coil length: These components are designed for sustained daily use.
- 13 mm Xmax: The specified linear excursion supports controlled cone travel.
- Sealed or ported enclosure options: Choose a sealed volume of 0.75–1.5 ft³ or a ported volume of 1.0–1.75 ft³.
- 160 oz magnet: The motor assembly has a BL rating of 19.7 N/A for D2 and 21.5 N/A for D4.
Technical Specifications
The specifications below distinguish the HDS3.3-12D2 and HDS3.3-12D4 versions.
| Specification | HDS3.3-12D2 | HDS3.3-12D4 |
|---|---|---|
| Woofer Size | 12" | 12" |
| RMS Power | 1,500 W | 1,500 W |
| Peak Power | 3,000 W | 3,000 W |
| Magnet Weight | 160 oz | 160 oz |
| Coil Diameter | 3 in | 3 in |
| Coil Length | 40 mm | 40 mm |
| Fs | 26.6 Hz | 33.2 Hz |
| Impedance | 2+2 Ohm | 4+4 Ohm |
| QMS | 6.49 | 6.37 |
| QES | 0.61 | 0.74 |
| QTS | 0.56 | 0.66 |
| VAS | 36.3 L | 34.5 L |
| Le | 2.46 mH | 3.43 mH |
| η (No) | 0.11% | 0.16% |
| CMS | 0.09 mm/N | 0.09 mm/N |
| Sensitivity (1W/1M) | 83.3 dB | 83.3 dB |
| BL | 19.7 N/A | 21.5 N/A |
| Xmax (±) | 13 mm | 13 mm |
| Xmech (±) | 27 mm | 27 mm |
| SD | 530 cm² | 530 cm² |
| Model | A | B | C | D |
|---|---|---|---|---|
| HDS3.3-12D2 | 325 mm / 12.8" | 290 mm / 11.42" | 186 mm / 7.32" | 210 mm / 8.27" |
| HDS3.3-12D4 | 325 mm / 12.8" | 290 mm / 11.42" | 186 mm / 7.32" | 210 mm / 8.27" |
| Enclosure Type | HDS3.3-12 D2/D4 |
|---|---|
| Sealed Enclosure | 0.75–1.5 ft³ |
| Ported Enclosure | 1.0–1.75 ft³ |
Why Choose This Product?
The HDS3.3-12 is designed for daily-driver and SQL builds that call for substantial, musical bass. Its 12-inch cone has a 530 cm² SD, while the listed Fs is 26.6 Hz for D2 and 33.2 Hz for D4. The two coil options also let you plan the final load around your amplifier rather than selecting a subwoofer by power rating alone.
A sealed enclosure in the recommended range is intended for tight, accurate bass. A ported enclosure of 1.0–1.75 ft³, tuned to approximately 28–34 Hz, is the suggested option for more low-end extension and output.
Installation & Compatibility Notes
Plan the amplifier match around the final impedance and its RMS rating. The source recommends a mono amplifier rated between 500–1,500 watts RMS at the wired impedance. D2 coils can be wired in parallel for 1Ω or in series for 4Ω. D4 coils can be wired in parallel for 2Ω or in series for 8Ω.
A Class D mono amplifier stable at 1Ω or 2Ω is described as a common pairing. Check your amplifier’s supported impedance and enclosure space against the subwoofer’s mounting dimensions before installation.
Frequently Asked Questions
What amplifier power is recommended for the HDS3.3-12?
The recommended range is 500–1,500 watts RMS at the final wired impedance. Confirm that the amplifier supports the load you choose.
What final impedance can I wire each version to?
The D2 version can be wired to 1Ω in parallel or 4Ω in series. The D4 version can be wired to 2Ω in parallel or 8Ω in series.
What enclosure volume should I use?
The suggested sealed volume is 0.75–1.5 ft³. The suggested ported volume is 1.0–1.75 ft³, tuned to approximately 28–34 Hz.
What are the mounting dimensions?
Both versions list A at 325 mm / 12.8", B at 290 mm / 11.42", C at 186 mm / 7.32", and D at 210 mm / 8.27". Compare these measurements with your available installation space.
How do the D2 and D4 versions differ in the specifications?
Both versions are rated at 1,500 W RMS and 3,000 W peak. Their impedance and several Thiele-Small values differ; see the specification table for the exact version-specific figures.
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Shop SoundQubed 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.
