Ground Zero / SUBWOOFER
Ground Zero GZHW 30SPL — specifications and enclosures
Ground Zero GZHW 30SPL: T/S parameters, mounting dimensions and manufacturer enclosure recommendations. Read the original PDF and load the driver into the 3D designer.
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 | 35.4 Hz |
|---|---|
| Vas | 15.8 L |
| Qes | 0.48 |
| Qms | 5.54 |
| Re | 2.0 Ω |
| Sd | Not provided / unverified |
| Le | 2.27 mH |
| One-way linear Xmax | Not provided / unverified |
| Frame diameter | 31.5 cm |
| Mounting cutout | 28.4 cm |
| Mounting depth | 19.8 cm |
Additional manufacturer specifications
| Published Qts | 0.44 |
|---|
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.