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Focal SUB 25 KXE — specifications and enclosures
Focal SUB 25 KXE: T/S parameters, mounting dimensions and manufacturer enclosure recommendations. Read the original PDF and load the driver into the 3D designer.
The source lists separate coil resistance; the T/S wiring configuration must be confirmed before electrical simulation. Check the manufacturer mechanical drawing for mounting dimensions before cutting panels.
Manufacturer enclosure recommendations
Manufacturer recommendationSealed 17 L
The published volume is not confirmed as net air volume. Check the definition in the manual.
Reference recommendation: confirm net air volume after driver, port and bracing displacement before applying.
Documentation only — check the limitations before use.
PDF · page 1 Manufacturer recommendationSealed 22 L
The published volume is not confirmed as net air volume. Check the definition in the manual.
Reference recommendation: confirm net air volume after driver, port and bracing displacement before applying.
Documentation only — check the limitations before use.
PDF · page 1 Calculator parameters
| Fs | 38.0 Hz |
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| Vas | 20.0 L |
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| Qes | 0.58 |
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| Qms | 5.0 |
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| Re | Not provided / unverified |
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| Sd | 327.0 cm² |
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| Le | Not provided / unverified |
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| One-way linear Xmax | Not provided / unverified |
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| Frame diameter | 26.8 cm |
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| Mounting cutout | 23.52 cm |
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| Mounting depth | 17.2 cm |
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Additional manufacturer specifications
| Published Qts | 0.52 |
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| Source table page | 1 |
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| Published Xmax (convention to confirm) | 22.5 mm |
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| RMS power | 600 W |
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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.