Ground Zero / SUBWOOFER
Ground Zero GZNW 38XMAX-II: 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 uses series-connected coils.
Manufacturer port: shape: slot, width: 242 mm, height: 130 mm, length: 400 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 3| Fs | 31.0 Hz |
|---|---|
| Vas | 26.2 L |
| Qes | 0.54 |
| Qms | 8.43 |
| Re | 2.4 Ω |
| Sd | 697.46 cm² |
| Le | 1.869 mH |
| One-way linear Xmax | Not provided / unverified |
| Frame diameter | 39.0 cm |
| Mounting cutout | 36.0 cm |
| Mounting depth | 30.0 cm |
| RMS power (manufacturer) | 4000 W |
|---|---|
| Published Qts | 0.5 |
| Source revision | GZNW-38XMAX-II_OM_AWV4.0.pdf |
| Published excursion (not verified one-way linear Xmax) | Xmax (mm / inch) 60 / 2.36 |
| Moving mass Mms | 695.9 g |
| Force factor BL | 24.6 Tm |
| Nominal impedance | 2 × 1 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.