Focal / SUBWOOFER
Focal SUB 12 SLIM — specifications and enclosures
Focal SUB 12 SLIM: T/S parameters, mounting dimensions and manufacturer enclosure recommendations. Read the original PDF and load the driver into the 3D designer.
Check the manufacturer mechanical drawing for mounting dimensions before cutting panels. No separately verified enclosure preset is included. See the manufacturer PDF; calculator proposals are not manufacturer recommendations.
Manufacturer enclosure recommendations
No ready-to-load manufacturer enclosure is documented. Load the driver parameters to calculate a CarBoxLab starting design.
Calculator parameters
| Fs | 24.0 Hz |
|---|---|
| Vas | 62.0 L |
| Qes | 0.764 |
| Qms | 6.882 |
| Re | 3.2 Ω |
| Sd | 471.0 cm² |
| Le | Not provided / unverified |
| One-way linear Xmax | Not provided / unverified |
| Frame diameter | 32.433 cm |
| Mounting cutout | 28.1 cm |
| Mounting depth | 8.61 cm |
Additional manufacturer specifications
| Published Qts | 0.687 |
|---|---|
| Source table page | 1 |
| RMS power | 280 W |
Data is for one subwoofer. Manufacturer recommendations are separate from CarBoxLab calculations. Net air volume excludes the driver, port and bracing; design dimensions are external. Loading a recommendation transfers the verified volume and tuning; confirm port geometry and construction separately.
Source documentation
Manufacturer technical documentation
Original manufacturer documents are not translated. Data reviewed: 2026-11-01.