Soundqubed HDB2.2 Series 10 " Subwoofer 2" DVC 400 Watts RMS D2/D4
Soundqubed HDB2.2 Series 10 " Subwoofer 2" DVC 400 Watts RMS D2/D4 - Dual 2 Ohm is backordered and will ship as soon as it is back in stock.
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Description
Description
SoundQubed HDB2.2-10 — 10" Subwoofer | 400W RMS | Dual 2 or Dual 4 Ohm
The SoundQubed HDB2.2-10 is a no-nonsense 10" subwoofer engineered for enthusiasts who want real, reliable bass without overbuilding their system. Rated at 400W RMS / 800W Peak, this driver delivers punchy, well-defined low-end that sits perfectly in daily driver builds, budget SQL setups, and space-conscious installs where a 12" simply won’t fit. With a resonant frequency of 33.5 Hz (D2) / 34 Hz (D4) and sensitivity of 83 dB across both configurations, the HDB2.2-10 hits low, stays clean, and responds fast — exactly what a daily driver sub should do.
The motor assembly features a 68 oz magnet and a 2" dual voice coil wound to 28mm, providing solid thermal management and dependable power handling for everyday use. The 10mm Xmax (18mm Xmech) delivers controlled linear excursion for clean bass at moderate output levels, while the 333 cm² cone area (SD) moves meaningful air for a 10" platform. Available in Dual 2 Ohm and Dual 4 Ohm configurations, the HDB2.2-10 wires to 1Ω, 2Ω, or 4Ω to match a wide range of mono amplifiers.
The HDB2.2-10 performs well in sealed enclosures from 0.5–1.2 ft³ for tight, accurate bass, or ported boxes from 1.0–1.75 ft³ for added output and extension. Whether you’re building a compact trunk system, a budget-friendly daily driver setup, or a clean SQL build on a reasonable budget, the HDB2.2-10 delivers consistent, quality performance. Pair it with a 200–400W RMS mono amplifier for best results.
Why Choose the SoundQubed HDB2.2-10?
- 400W RMS / 800W Peak Power Handling — Right-sized power for daily driver and budget SQL builds without over-amping your system.
- 68 oz Magnet Structure — Solid motor for a value-tier 10" driver, delivering reliable BL force and controlled cone movement.
- 2" Dual Voice Coil (28mm Wind) — Dual coil design provides wiring flexibility and improved heat dissipation for daily use.
- 10mm Xmax / 18mm Xmech — Controlled linear excursion for clean, accurate bass at everyday listening levels.
- 33.5 Hz Resonant Frequency (D2) — Low enough Fs to reproduce genuine sub-bass content with authority.
- D2 or D4 Impedance Options — Wire to 1Ω, 2Ω, or 4Ω to match your amplifier’s optimal stable load.
- 83 dB Sensitivity — Efficient output that performs well with modest amplifier power — ideal for budget builds.
- SoundQubed HDB2.2 Series Value — Quality construction and real-world performance at an accessible price point.
Amplifier & Enclosure Recommendations
Amplifier Pairing: The HDB2.2-10 is rated at 400W RMS, so target a mono amplifier delivering 200–400W RMS at your chosen final impedance. The Dual 2 Ohm variant wires to 1Ω (parallel) or 4Ω (series). The Dual 4 Ohm variant wires to 2Ω (parallel) or 8Ω (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.
Enclosure: For sealed installs, target 0.5–1.2 ft³ net internal volume for tight, accurate bass with excellent transient response — ideal for rock, country, and acoustic genres. For ported builds, use 1.0–1.75 ft³ net with a port tuned to 33–42 Hz for added output and low-frequency extension — great for hip-hop, EDM, and bass-heavy content. The HDB2.2-10 is a natural fit for trunk builds, hatchback installs, and any application where a 12" is too large but you still want real bass.
Full Specifications — T/S Parameters
| Parameter | HDB2.2-10D2 | HDB2.2-10D4 |
|---|---|---|
| Woofer Size | 10" | 10" |
| 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 | 33.5 Hz | 34 Hz |
| Impedance | 2+2 Ohm | 4+4 Ohm |
| QMS | 4.72 | 4.74 |
| QES | 0.64 | 0.70 |
| QTS | 0.56 | 0.61 |
| VAS | 20.3 L | 22.9 L |
| Le | 1.177 mH | 1.64 mH |
| η₀ (No) | 0.12% | 0.12% |
| CMS | 0.132 mm/N | 0.150 mm/N |
| Sensitivity (1W/1m) | 83 dB | 83 dB |
| BL | 14.54 N/A | 16.82 N/A |
| Xmax (±) | 10 mm | 10 mm |
| Xmech (±) | 18 mm | 18 mm |
| SD | 333 cm² | 333 cm² |
Mounting Dimensions
| Model | A | B | C | D |
|---|---|---|---|---|
| HDB2.2-10D2 | 261 mm / 10.28" | 228 mm / 8.98" | 160 mm / 6.3" | 136 mm / 5.35" |
| HDB2.2-10D4 | 261 mm / 10.28" | 228 mm / 8.98" | 160 mm / 6.3" | 136 mm / 5.35" |
Enclosure Suggestions
| Enclosure Type | HDB2.2-10D2 | HDB2.2-10D4 |
|---|---|---|
| Sealed Enclosure | 0.5–1.2 ft³ | 0.5–1.2 ft³ |
| Ported Enclosure | 1.0–1.75 ft³ | 1.0–1.75 ft³ |
Frequently Asked Questions
Q: What amplifier should I pair with the HDB2.2-10?
A: Target a mono amplifier rated at 200–400W RMS 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 builds.
Q: What’s the difference between the D2 and D4 versions?
A: Both handle the same power and share identical physical specs. The D2 (Dual 2 Ohm) wires to 1Ω or 4Ω; the D4 (Dual 4 Ohm) wires to 2Ω or 8Ω. Choose based on your amplifier’s stable impedance rating.
Q: What box size does the HDB2.2-10 need?
A: Sealed: 0.5–1.2 ft³ for tight, accurate bass. Ported: 1.0–1.75 ft³ tuned to 33–42 Hz for more output and extension. This driver works great in trunk builds and compact custom enclosures.
Q: Is this sub good for daily use or competition?
A: The HDB2.2-10 is a daily driver sub — optimized for reliable, quality output at 400W RMS for everyday listening. It’s not a dedicated competition driver, but it delivers real bass performance at a price point that makes it one of the best values in its class.

