Orion HCCA 15D (1999)
15″ subwoofer · dual 2 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) | Tight and punchy · 0.80 |
|---|---|
| Fc | 62 Hz |
| F3 (−3 dB, no cabin gain) | 59 Hz |
| Example box (outside) | 16 15/16″ × 16 15/16″ × 13 9/16″ |
Ported
deeper, louder| Tuning (Fb) | 34 Hz |
|---|---|
| Port | slot 1 9/16 × 16 5/16″, 18 1/2″ long |
| Port velocity at 300 W | 51 ft/s |
| F3 (−3 dB, no cabin gain) | 37 Hz |
| Example box (outside) | 31 1/2″ × 17 11/16″ × 12 9/16″ |
Deeper: 4.94 ft³ (140 L) tuned to 33 Hz, 31 1/2″ × 17 11/16″ × 20 3/8″ 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 | 15″ |
|---|---|
| Voice coils | dual 2 Ω |
| RMS power | — |
| Fs | 35 Hz |
| Qts | 0.45 |
| Qes | 0.49 |
| Qms | 5.54 |
| Vas | 3.25 ft³ |
| Re (one coil) | 2.5 Ω |
|---|---|
| Sd | 128 in² |
| Xmax | 0.63″ |
| Vd | 80.6 in³ calc. |
| Mms | 217 g calc. |
| BL | 15.6 T·m calc. |
| EBP | 71 — sealed or ported calc. |
| Sensitivity, 1 W / 1 m | 91.1 dB calc. |
Mounting dimensions
| Cutout diameter | 13 7/8″ |
|---|---|
| Mounting depth | 7 1/2″ |
| Overall diameter | 15 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 15″ models
- Orion 2NT 15 DVC 15″ · dual 4 Ω
- Orion 2NT 15 SVC 15″ · 4 Ω
- Orion Cobalt 15 DVC (1999) 15″ · dual 4 Ω
- Orion Cobalt 15 DVC (original) 15″ · dual 4 Ω
- Orion Cobalt 15 SVC (1999) 15″ · 4 Ω
- Orion Cobalt 15 SVC (original) 15″ · 4 Ω
- Orion HCCA 15D 15″ · dual 2 Ω
- Orion HCCA152 (HCCA 15" DVC 2ohm) 15″ · dual 2 Ω
- Orion HCCA152SPL (HCCA SPL 15" DVC 2ohm) 15″ · dual 2 Ω
- Orion HCCA154 (HCCA 15" DVC 4ohm) 15″ · dual 4 Ω
- Orion HCCA154SPL (HCCA SPL 15" DVC 4ohm) 15″ · dual 4 Ω
- Orion NT 15 DVC 15″ · dual 4 Ω
Similar 15″ subwoofers from other brands
Close in Fs, Qts and Vas — a box of similar volume will suit them.
- DD Audio 615e D2 1.52 ft³ sealed · 2.33 ft³ ported
- DD Audio 615e D4 1.52 ft³ sealed · 2.33 ft³ ported
- Fi Audio SSD-EL 15 D2 1.41 ft³ sealed · 2.61 ft³ ported
- ESX QE1524 (2x4 Ohm) 2.12 ft³ sealed · 2.86 ft³ ported
- SPL Dynamics PRO-15D2 MK3 1.13 ft³ sealed · 2.33 ft³ ported
- SPL Dynamics PRO-15D4 MK3 1.13 ft³ sealed · 2.33 ft³ ported
FAQ
What box does the Orion HCCA 15D (1999) need?
Recommended net volume: 1.52 ft³ sealed, 2.61 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 Orion HCCA 15D (1999) Thiele/Small specs?
Fs 35 Hz, Qts 0.45, Vas 3.25 ft³, Xmax 0.63″, Sd 128 in².
What is the Orion HCCA 15D (1999) mounting depth?
Mounting depth is 7 1/2″, cutout diameter 13 7/8″. The inside depth of the box must exceed the mounting depth by at least 1″.