Hertz / SUBWOOFER
Hertz ES 250.5: T/S parameters, mounting dimensions and manufacturer enclosure recommendations. Read the original PDF and load the driver into the 3D designer.
Sd calculated from manufacturer effective diameter D: π × (D/10)² / 4 cm². One-way linear Xmax is unverified; no excursion limit is assumed. Archived Energy model.
The published volume is not confirmed as net air volume. Check the definition in the manual.
Published volume is not a verified net air volume. Use the original drawing and subtract occupied volumes before designing.
Documentation only — check the limitations before use.
PDF · page 15The published volume is not confirmed as net air volume. Check the definition in the manual.
Published volume is not a verified net air volume. Use the original drawing and subtract occupied volumes before designing.
Documentation only — check the limitations before use.
PDF · page 15Tuning Fb: 40 Hz.
The published volume is not confirmed as net air volume. Check the definition in the manual.
Published volume is not a verified net air volume. Use the original drawing and subtract occupied volumes before designing.
Documentation only — check the limitations before use.
PDF · page 16Tuning Fb: 35 Hz.
The published volume is not confirmed as net air volume. Check the definition in the manual.
Published volume is not a verified net air volume. Use the original drawing and subtract occupied volumes before designing.
Documentation only — check the limitations before use.
PDF · page 16| Fs | 35 Hz |
|---|---|
| Vas | 33.4 L |
| Qes | 0.65 |
| Qms | 7.98 |
| Re | 2.9 Ω |
| Sd | 352.99 cm² |
| Le | 1.54 mH |
| One-way linear Xmax | Not provided / unverified |
| Frame diameter | 26.4 cm |
| Mounting cutout | 23.4 cm |
| Mounting depth | 11.9 cm |
| Published Qts | 0.6 |
|---|---|
| Published Xmax (definition to verify) | 9 mm |
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.
Manufacturer technical documentation
Original manufacturer documents are not translated. Data reviewed: 2026-10-31.