DS18 / SUBWOOFER
DS18 SRW8.4D — specifications and enclosures
DS18 SRW8.4D: T/S parameters, mounting dimensions and manufacturer enclosure recommendations. Read the original PDF and load the driver into the 3D designer.
The PDF lists individual coil resistance without an explicit T/S measurement connection. Verify Re before electrical simulation. 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 | 66.0 Hz |
|---|---|
| Vas | 6.7 L |
| Qes | 0.9 |
| Qms | 6.122 |
| Re | Not provided / unverified |
| Sd | 213.82 cm² |
| Le | 17.5 mH |
| One-way linear Xmax | Not provided / unverified |
| Frame diameter | 21.5 cm |
| Mounting cutout | 18.1 cm |
| Mounting depth | 7.5 cm |
Additional manufacturer specifications
| Published Qts | 0.785 |
|---|---|
| RMS Power Handling | 150W |
| Nominal Impedance | 4+4 Ohm |
| Displacement Volume | 1.13L / 0.039 ft3 |
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.