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The Rockford Fosgate T1SG-12 is a 12" stamped steel mesh grille insert in black designed for Power T1 Slim slimline subwoofers with a removable trim ring. The grille inserts into the slimline subwoofer's trim ring no additional hardware required. The trim ring (included with the subwoofer) holds the grille securely in position.
Power T1 Slim subwoofers are frequently installed behind or under truck seats environments where tools, cargo, and general cab contents can contact the exposed driver face. The T1SG-12 provides a rigid protective barrier across the 12" driver without requiring modification to the slimline enclosure.
| Specification | Detail |
|---|---|
| Brand | Rockford Fosgate |
| Part Number | T1SG-12 |
| Series | Power T1 Slim |
| Compatible Size | 12 inch (slimline) ✓ |
| Compatible Series | Power T1 Slim (removable trim ring models) ✓ |
| Grille Type | Stamped Mesh Insert ✓ |
| Material | Stamped Steel ✓ |
| Colour | Black ✓ |
| Fitment | T1 Slim removable trim ring insertion ✓ |
| Trim Ring Required | Yes — must be removable type ✓ |
| Installation | Behind-seat / under-seat ✓ |
| Compatible SKUs | Select T1 Slim 12" models (confirm with Rockford Fosgate) |
| Pack Quantity | Not confirmed |
| Dimensions | Not confirmed |
| Weight | Not confirmed |
| Warranty | Not confirmed |
Confirmed compatible platform:
No — the grille inserts into the trim ring already on the T1 Slim 12" subwoofer. The T1SG-12 is the grille insert only. The subwoofer must have a removable trim ring.
Power T1 Slim subwoofers are designed for behind-seat and under-seat truck and ute installations — environments that experience far more physical contact and movement than a dedicated boot installation. The grille protects the exposed driver face from tools, seat adjustments, and cab cargo that would not typically contact a boot-mounted subwoofer.
The T1SG-12 specifies compatibility with T1 Slim subwoofers that have a removable trim ring — not all T1 Slim models may include this feature. Confirm with Rockford Fosgate whether your specific T1 Slim 12" subwoofer SKU is compatible.
Pack quantity is not confirmed. Confirm from the official Rockford Fosgate T1SG-12 product page before ordering.
A T1SG-10 may be available for the T1S1-10 — confirm the full T1SG range with Rockford Fosgate.
Servicing the Illawarra and surrounding areas for over 30 years, Frankies Auto Electrics is a multi-award winning service provider and retail outlet, covering all aspects of auto electrical work and in-car entertainment. From sales and installations, electrical diagnostics and fault finding, upgrades and additions, our team of qualified sales people, technicians and installers are on hand to help.
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