Sealed 21.24 L
Follow the original manufacturer construction instructions.
Cerwin-Vega / SUBWOOFER
Cerwin-Vega VMAXS124 — specifications and enclosures
Cerwin-Vega VMAXS124: T/S parameters, mounting dimensions and manufacturer enclosure recommendations. Read the original PDF and load the driver into the 3D designer.
Re is not imported: the table does not unambiguously specify measured DC resistance for the T/S coil configuration. Confirm electrical parameters before power simulation. The manual does not define the Xmax excursion convention; Xmax is shown as reference only.
Manufacturer enclosure recommendations
Bass-reflex 35.4 L
Manufacturer net volume. Tuning frequency is not specified; follow the original port drawing in the PDF. No automatic vented preset.
Documentation only — check the limitations before use.
PDF · page 6Calculator parameters
| Fs | 33.3 Hz |
|---|---|
| Vas | 64.4 L |
| Qes | 0.64 |
| Qms | 6.65 |
| Re | Not provided / unverified |
| Sd | 551.5 cm² |
| Le | Not provided / unverified |
| One-way linear Xmax | Not provided / unverified |
| Frame diameter | 32.5 cm |
| Mounting cutout | 28.0 cm |
| Mounting depth | 9.2 cm |
Additional manufacturer specifications
| Published Qts | 0.59 |
|---|---|
| Published Xmax (convention unconfirmed) | 9 mm |
| Nominal power | 400 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.