Vibe Audio BlackAir 12 D2S (BLACKAIR12D2S-V3)
12″ subwoofer · dual 2 Ω · 300 W RMS
The Vibe Audio BlackAir 12 D2S (BLACKAIR12D2S-V3) is a shallow 12″ sub (3 1/8″ mounting depth): it fits behind a truck seat or in a slim box. With Qts 0.82 and EBP 33 it suits a sealed box: tight bass in a small enclosure; a ported box would need a lot of volume. Modest excursion (Xmax 0.31″) — for clean sound at moderate levels, not for SPL competitions.
| Source | vibeaudio.co.uk · manufacturer data |
|---|---|
| Checked against source | October 2026 |
| Thiele/Small parameters | complete |
| Mounting dimensions | 3 of 4 — missing: magnet diameter; the designer will use an estimate |
Recommended box
For a sedan, one sub, 300 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
smaller, tighter| Bass character (Qtc) | Boomy, with a bump · 1.06 |
|---|---|
| Fc | 41 Hz |
| F3 (−3 dB, no cabin gain) | 32 Hz |
| Example box (outside) | 31 1/2″ × 15 3/4″ × 8 5/8″ |
Ported
deeper, louder| Tuning (Fb) | 34 Hz |
|---|---|
| Port | slot 1 9/16 × 14 5/16″, 39 9/16″ long |
| Port velocity at 300 W | 34 ft/s |
| F3 (−3 dB, no cabin gain) | 31 Hz |
| Example box (outside) | 31 1/2″ × 15 3/4″ × 9 1/2″ |
Deeper: 2.90 ft³ (82 L) tuned to 29 Hz, 31 1/2″ × 15 3/4″ × 14 15/16″ outside — a bigger box with flatter deep bass. Open in the calculator
Projects with this subwoofer
Boxes that users designed and published: plans, cut sheet and response graph.
Thiele/Small parameters
| Size | 12″ |
|---|---|
| Voice coils | dual 2 Ω |
| RMS power | 300 W |
| Fs | 31.6 Hz |
| Qts | 0.82 |
| Qes | 0.965 |
| Qms | 5.49 |
| Vas | 1.14 ft³ |
| Re (one coil) | 1.8 Ω |
|---|---|
| Sd | 74.4 in² |
| Xmax | 0.31″ |
| Vd | 23.4 in³ calc. |
| Mms | 257 g calc. |
| BL | 9.8 T·m calc. |
| EBP | 33 — suits sealed calc. |
| Sensitivity, 1 W / 1 m | 82.2 dB calc. |
Mounting dimensions
| Cutout diameter | 10 1/2″ |
|---|---|
| Mounting depth | 3 1/8″ |
| Overall diameter | 12 5/16″ |
Where it fits in a vehicle
Spots from our vehicle guides where the cutout, mounting depth and recommended box fit. The spot sizes are approximate — measure your own vehicle.
- Bronco 4-door — behind the rear seat sealed and ported box
- Wrangler 4-door, hard top — behind the rear seat sealed and ported box
- Wrangler 4-door, soft top — behind the rear seat sealed and ported box
- Silverado / Sierra Crew Cab — under the rear seat sealed and ported box
- FJ Cruiser — behind the rear seat sealed and ported box
- El Camino 1978–87 — behind the seat sealed and ported box
- Cherokee XJ — cargo area, spare moved out sealed and ported box
- Excursion — behind the third row sealed and ported box
- Mustang 2015–2023 coupe — trunk sealed and ported box
- Challenger / Charger — trunk sealed and ported box
- Club Car Precedent — under the rear seat sealed and ported box
“≈” 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
- vibeaudio.co.uk/wp-content/uploads/2025/02/BlackAir-10-12D2S-subwoofer-manual-25
- vibeaudio.co.uk/wp-content/uploads/2025/06/BlackAir-1012D2S-subwoofer-manual-250
Other Vibe Audio 12″ models
- Vibe Audio BlackAir 12 D2 (BA12D2-V5) 12″ · dual 2 Ω
- Vibe Audio BlackAir 12 D2 (BLACKAIR12D2-V7) 12″ · dual 2 Ω
- Vibe Audio BlackAir 12 D2 (V4) 12″ · dual 2 Ω
- Vibe Audio BlackDeath 12 D1 SPL (BD12D1SPL-V4) 12″ · dual 1 Ω
- Vibe Audio BlackDeath 12 D2 (BD12D2-V4) 12″ · dual 2 Ω
- Vibe Audio BlackDeath 12 D2 SPL (BD12D2SPL-V4) 12″ · dual 2 Ω
- Vibe Audio BlackDeath 12 D4 (BD12D4-V4) 12″ · dual 4 Ω
- Vibe Audio BlackDeath 12 HEX D1 (BLACKDEATH12HEX-V7) 12″ · dual 1 Ω
- Vibe Audio BlackDeath Comp 12 HEX D1 (BLACKDEATHC12HEX-V7) 12″ · dual 1 Ω
- Vibe Audio Pulse 12 (PULSE12-V0) 12″ · 4 Ω
- Vibe Audio Pulse 12 D2 (PULSE12D2-V3) 12″ · dual 2 Ω
- Vibe Audio Slick 12 D2 (SLICK12D2-V0) 12″ · dual 2 Ω
Similar 12″ subwoofers from other brands
Close in Fs, Qts and Vas — a box of similar volume will suit them.
- Ascendant Audio Arsenal 12 D1 1.70 ft³ sealed · 1.20 ft³ ported
- Massive Audio UFO12 1.66 ft³ sealed · 1.17 ft³ ported
- Diamond DES122 1.77 ft³ sealed · 1.24 ft³ ported
- Ascendant Audio Arsenal 12 D2 1.70 ft³ sealed · 1.20 ft³ ported
- Quantum Audio QW3000/12D4 1.87 ft³ sealed · 1.31 ft³ ported
- DD Audio 2512f D2 1.73 ft³ sealed · 1.24 ft³ ported
All 12″ subwoofers in our database →
FAQ
What box does the Vibe Audio BlackAir 12 D2S (BLACKAIR12D2S-V3) need?
Recommended net volume: 1.70 ft³ sealed, 1.20 ft³ ported tuned to 34 Hz — for one sub in a sedan at 300 W. Fit the box to your space and amp in the free calculator, with plans and a cut sheet.
What are the Vibe Audio BlackAir 12 D2S (BLACKAIR12D2S-V3) Thiele/Small specs?
Fs 31.6 Hz, Qts 0.82, Vas 1.14 ft³, Xmax 0.31″, Sd 74.4 in².
What is the Vibe Audio BlackAir 12 D2S (BLACKAIR12D2S-V3) mounting depth?
Mounting depth is 3 1/8″, cutout diameter 10 1/2″. The inside depth of the box must exceed the mounting depth by at least 1″.
How much power does the Vibe Audio BlackAir 12 D2S (BLACKAIR12D2S-V3) handle and how do I wire it?
RMS power rating: 300 W. Dual 2 Ω voice coils: series gives 4 Ω, parallel gives 1 Ω at the amp. Wiring for several subs and amp power — in the wiring calculator.
Is the Vibe Audio BlackAir 12 D2S (BLACKAIR12D2S-V3) better sealed or ported?
EBP 33: a sealed box (1.70 ft³) suits it best — tight bass in a compact enclosure. Ported is possible (1.20 ft³, tuned to 34 Hz) but larger.
What port does the Vibe Audio BlackAir 12 D2S (BLACKAIR12D2S-V3) need?
For the 1.20 ft³ ported box tuned to 34 Hz: slot 1 9/16 × 14 5/16″, 39 9/16″ long, area 22.6 in²; or a round port Ø5 3/8″, ≈ 39 9/16″ long. Port air speed at 300 W: 34 ft/s.
What box do two Vibe Audio BlackAir 12 D2S (BLACKAIR12D2S-V3) subs need?
Two subs need twice the volume: 3.39 ft³ sealed, or 2.40 ft³ ported at the same 34 Hz tuning with twice the port area. One shared chamber or one per sub — whatever fits your vehicle.