Ground Zero / SUBWOOFER
Ground Zero GZIW 200: T/S parameters, mounting dimensions and manufacturer enclosure recommendations. Read the original PDF and load the driver into the 3D designer.
Parameters use the linked manufacturer manual revision. One-way linear Xmax is not unambiguously confirmed; total excursion is not used as a simulation limit. Complete missing fields before full simulation. Re follows the published table; confirm the T/S measurement coil wiring.
Manufacturer port: shape: round, diameter: 70 mm, length: 240 mm.
Published volume and port design do not unambiguously specify Fb. F3 is not tuning frequency. Reference profile; see PDF for port details. Port dimensions are reference data, not a ready cutting plan.
Documentation only — check the limitations before use.
PDF · page 5| Fs | 32.0 Hz |
|---|---|
| Vas | 23.6 L |
| Qes | 0.47 |
| Qms | 6.53 |
| Re | 3.7 Ω |
| Sd | Not provided / unverified |
| Le | 1.5 mH |
| One-way linear Xmax | Not provided / unverified |
| Frame diameter | 21.1 cm |
| Mounting cutout | 18.2 cm |
| Mounting depth | 10.0 cm |
| RMS power (manufacturer) | 150 W |
|---|---|
| Published Qts | 0.44 |
| Source revision | GZIW-200_OM_AWV2.1.pdf |
| Published excursion (not verified one-way linear Xmax) | Xmax 20 mm / 0.79" |
| Moving mass Mms | 62.6 g |
| Force factor BL | 10.11 Tm |
| Nominal impedance | 4 Ω |
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.
Original manufacturer documents are not translated. Data reviewed: 2026-10-31.