Audioque HDC312-A D1
12″ subwoofer · dual 1 Ω · 1,000 W RMS
Fs 43 HzQts 0.29Vas 0.74 ft³
The published specs don’t add up:
- The spec sheet's Qts 0.375 doesn't match its Qes and Qms (they give 0.29).
Recommended box
For a sedan, one sub, 1,000 W. It’s the same math as the designer’s step-by-step mode, where you can fit the box to your space, vehicle and amp and get plans, a cut sheet and DXF.
Sealed
| Net volume | 0.79 ft³ (22.5 L) |
|---|---|
| Qtc | 0.41 |
| Fc | 60 Hz |
| F3 (−3 dB, no cabin gain) | 125 Hz |
| Example box (outside) | 14 9/16″ × 14 9/16″ × 10 7/16″ |
Ported
| Net volume | 1.59 ft³ (45 L) |
|---|---|
| Tuning (Fb) | 33 Hz |
| Port | slot 2 3/16 × 14 5/16″, 43 5/16″ long |
| Port velocity at 1,000 W | 78 ft/s |
| F3 (−3 dB, no cabin gain) | 109 Hz |
| Example box (outside) | 31 1/2″ × 15 3/4″ × 12 1/8″ |
Thiele/Small parameters
| Fs | 43 Hz |
|---|---|
| Qts | 0.29 |
| Qes | 0.305 |
| Qms | 7.31 |
| Vas | 0.74 ft³ |
| Re (one coil) | ≈ 0.85 Ω |
| Sd | 82.2 in² |
| Xmax | ≈ 0.39″ |
| Mms | 260 g calc. |
| BL | 14 T·m calc. |
| EBP | 141 — suits ported calc. |
| Sensitivity, 1 W / 1 m | 89.4 dB calc. |
General
| Size | 12″ |
|---|---|
| Voice coils | dual 1 Ω |
| RMS power | 1,000 W |
Mounting dimensions
| Cutout diameter | 11 3/8″ |
|---|---|
| Mounting depth | 8″ |
| Magnet diameter | 8 11/16″ |
“≈” means the value isn’t in the spec sheet and a typical value for the size is used; “calc.” means it’s calculated from the published parameters. Check the manufacturer’s spec sheet before you build.
Data sources
Other Audioque 12″ models
- Audioque HDC412-D1-A 12″ · dual 1 Ω
- Audioque SDC2.012 D4 12″ · dual 4 Ω
- Audioque SDC2.512 D4 12″ · dual 4 Ω