Orion Cobalt 12 DVC (original)
12″ subwoofer · dual 4 Ω
| Source | web.archive.org · 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 · 1.04 |
|---|---|
| Fc | 58 Hz |
| F3 (−3 dB, no cabin gain) | 48 Hz |
| Example box (outside) | 31 1/2″ × 15 3/4″ × 8 15/16″ |
Ported
deeper, louder| Tuning (Fb) | 32 Hz |
|---|---|
| Port | slot 1 9/16 × 14 5/16″, 21 3/4″ long |
| Port velocity at 300 W | 39 ft/s |
| F3 (−3 dB, no cabin gain) | 39 Hz |
| Example box (outside) | 31 1/2″ × 15 3/4″ × 12 9/16″ |
Deeper: 3.04 ft³ (86 L) tuned to 41 Hz, 31 1/2″ × 15 3/4″ × 14 9/16″ 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 4 Ω |
| RMS power | — |
| Fs | 29 Hz |
| Qts | 0.52 |
| Qes | 0.6 |
| Qms | 3.74 |
| Vas | 5.39 ft³ |
| Re (one coil) | 3.45 Ω |
|---|---|
| Sd | 78 in² |
| Xmax | 0.25″ |
| Vd | 19.3 in³ calc. |
| Mms | 71 g calc. |
| BL | 8.6 T·m calc. |
| EBP | 48 — suits sealed calc. |
| Sensitivity, 1 W / 1 m | 89.9 dB calc. |
Mounting dimensions
| Cutout diameter | 11 1/8″ |
|---|---|
| Mounting depth | 5 1/2″ |
| Overall diameter | 12 1/2″ |
“≈” 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 Orion 12″ models
- Orion 2NT 12 DVC 12″ · dual 4 Ω
- Orion 2NT 12 SVC 12″ · 4 Ω
- Orion Cobalt 12 DVC (1999) 12″ · dual 4 Ω
- Orion Cobalt 12 SVC (1999) 12″ · 4 Ω
- Orion Cobalt 12 SVC (original) 12″ · 4 Ω
- Orion HCCA 12D 12″ · dual 2 Ω
- Orion HCCA 12D (1999) 12″ · dual 2 Ω
- Orion HCCA122 (HCCA 12" DVC 2ohm) 12″ · dual 2 Ω
- Orion HCCA124 (HCCA 12" DVC 4ohm) 12″ · dual 4 Ω
- Orion NT 12 DVC 12″ · dual 4 Ω
- Orion NT 12 SVC 12″ · 4 Ω
- Orion XTR 12 DVC (original) 12″ · dual 4 Ω
Similar 12″ subwoofers from other brands
Close in Fs, Qts and Vas — a box of similar volume will suit them.
- Clarion SRM3093HX 1.73 ft³ sealed · 2.26 ft³ ported
- Kicker Freeair F12a 12" 4-Ohm SVC (F12a) 1.87 ft³ sealed · 2.44 ft³ ported
- Rockford Fosgate Punch SP-412 (1990) 1.94 ft³ sealed · 2.51 ft³ ported
- Kicker Comp 12" 8-Ohm SVC (C128) 1.87 ft³ sealed · 2.44 ft³ ported
- Bomber Upgrade 500W 4 Ohm (SW12UP-500-4) 1.91 ft³ sealed · 2.51 ft³ ported
- Polk Audio GXR124 1.87 ft³ sealed · 2.44 ft³ ported
FAQ
What box does the Orion Cobalt 12 DVC (original) need?
Recommended net volume: 1.77 ft³ sealed, 2.30 ft³ ported tuned to 32 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 Orion Cobalt 12 DVC (original) Thiele/Small specs?
Fs 29 Hz, Qts 0.52, Vas 5.39 ft³, Xmax 0.25″, Sd 78 in².
What is the Orion Cobalt 12 DVC (original) mounting depth?
Mounting depth is 5 1/2″, cutout diameter 11 1/8″. The inside depth of the box must exceed the mounting depth by at least 1″.