Description
Rockford Fosgate T1S2-12 Power 12" T1 Slim Single 2-Ohm Subwoofer T1 Performance, Shallow Depth
Product Overview
The Rockford Fosgate T1S2-12 is a 12" slimline single 2-ohm subwoofer from the flagship Power T1 series, rated at 600W RMS and 1200W peak. Engineered specifically for installations where traditional-depth subwoofers will not fit, the T1S2-12 is not a generic shallow driver it is a purpose-designed slimline subwoofer built to deliver near-identical performance characteristics to the full-depth Power T1 range, through a suite of patent-pending and proprietary technologies that are unique to the T1 slimline platform.
At the heart of the T1S2-12 is a proprietary slotted voice coil assembly with interior and exterior windings that enables exceptional long-excursion travel from a reduced mounting depth addressing the fundamental challenge of shallow subwoofer design where limited cone excursion typically constrains bass output. A high-energy neodymium motor structure, proprietary split yoke pass-through motor technology, encapsulating voice coil-to-former coupling, integrated copper cap heat-sinking shorting ring (IDHS), dual Nomex progressive spiders with integrated lead wires, and a carbon fibre/PMI/glass fibre composite cone combine to produce a slimline driver engineered with the same rigour as the full-depth T1 range. Optimised for sealed enclosures. Detachable die-cast aluminium trim ring included; optional grille insert available separately.
Key Specifications
- Driver size: 12" slimline
- Voice coil configuration: Single 2-ohm
- Power handling: 600W RMS / 1200W peak
- Motor structure: High-temp high-energy neodymium
- Voice coil: Dual wound 2.5" with interior and exterior windings (slotted assembly)
- Cone: Carbon fibre / PMI / glass fibre composite with aluminium dust cap
- Surround: Injection-moulded foam with VAST technology
- Spiders: Dual Nomex progressive with integrated lead wires
- Basket: Aluminium die-cast with integrated heat sink fins
- Shorting ring: Integrated copper cap heat-sinking (IDHS)
- Input terminals: Custom insulated push spring 10 AWG
- Pole piece: Vented
- Trim ring: Detachable die-cast aluminium (included)
- Grille: Optional grille insert (sold separately)
- Optimised for: Sealed enclosures
- Frequency response: Confirm with supplier
- Sensitivity: Confirm with supplier
- Xmax: Confirm with supplier
- Mounting depth: Confirm with supplier
- Cutout diameter: Confirm with supplier
Features & Benefits
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Proprietary slotted voice coil assembly with interior/exterior windings (patent pending): The engineering core of the T1S2-12. The slotted assembly with dual winding configuration allows the voice coil to travel significantly further than a conventional shallow driver voice coil, generating the long excursion needed for deep, high-output bass from a reduced mounting depth. This is the key technology that separates the T1S2-12 from generic shallow subwoofers.
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Proprietary split yoke pass-through motor technology (patent pending): The split yoke design allows the motor structure to be configured in a way that enables greater excursion travel within a slimmer overall assembly depth. A fundamental motor architecture innovation that contributes directly to the T1S2-12's ability to match full-depth T1 performance characteristics.
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High-temp high-energy neodymium motor structure: Neodymium magnets produce a stronger magnetic field per unit mass than conventional ferrite magnets, enabling higher motor force (BL) in a more compact and lighter motor assembly critical for achieving T1-level sensitivity and power handling in a slimline format where magnet volume is constrained.
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Encapsulating voice coil-to-former coupling technology (patent pending): The voice coil is coupled to the former through an encapsulating process that increases the bonding surface area and strength, preventing delamination at the high excursion levels and sustained power inputs the T1S2-12 is designed to handle.
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Integrated copper cap heat-sinking shorting ring (IDHS): The copper shorting ring reduces inductance variation across the excursion range (improving linearity and reducing distortion) while simultaneously acting as a heat sink to draw thermal energy away from the voice coil gap directly contributing to sustained power handling reliability.
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Carbon fibre/PMI/glass fibre composite cone with aluminium dust cap: A multi-material composite cone significantly stiffer and lighter than conventional paper or polypropylene cones, maintaining pistonic accuracy at the high excursion levels the slotted voice coil assembly enables. PMI (polymethacrylimide) foam core adds internal damping to suppress cone resonances.
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Injection-moulded foam surround with VAST technology: VAST (Vertical Attach Surround Technique) reclaims cone surface area at the surround attachment, and the injection-moulded foam surround provides consistent, repeatable excursion compliance across the full travel range more precise than rubber or cloth surrounds at high excursion levels.
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Dual Nomex progressive spiders with integrated lead wires: Dual progressive spiders provide linear restoring force symmetry across the extended excursion range the slotted voice coil enables. Integrated lead wires eliminate the traditional separate tinsel lead removing a common failure point in high-excursion slimline drivers.
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Aluminium die-cast basket with integrated heat sink fins: The basket fins actively dissipate heat from the motor assembly during sustained high-power use a thermal management feature particularly important in compact, sealed enclosure environments where heat accumulates more rapidly than in larger enclosure volumes.
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Single 2-ohm voice coil simplified wiring: Single voice coil eliminates dual-coil wiring complexity, presenting a direct 2-ohm load to the amplifier. Straightforward pairing with any 2-ohm stable mono amplifier without impedance configuration decisions.
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Vented pole piece: Air channels through the pole piece reduce thermal compression and back-pressure behind the cone at high excursion levels, improving linearity and power handling consistency.
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Custom insulated push spring 10 AWG terminals: Appropriate for the current demands of a 600W RMS, 2-ohm system. Push-spring design allows fast, clean wiring without tools.
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Optimised for sealed enclosures: Rockford Fosgate has specifically tuned the T1S2-12 for sealed enclosure use, ensuring the driver's compliance and Qts parameters produce the intended bass response in a sealed alignment confirm recommended enclosure volume with Rockford Fosgate documentation before building.
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Detachable die-cast aluminium trim ring included: Provides a clean, finished appearance at the installation cutout. The detachable design allows removal for bare-driver installation where a trim ring is not required.
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Optional grille insert available separately: Grille protection is available for installations where driver exposure is a concern confirm compatible part number with your supplier.
Technical Specs
| Specification |
Detail |
| SKU |
T1S2-12 |
| Brand |
Rockford Fosgate |
| Driver Size |
12" slimline |
| Voice Coil Configuration |
Single 2-ohm |
| Power Handling |
600W RMS / 1200W peak |
| Motor Structure |
High-temp high-energy neodymium |
| Voice Coil |
Dual wound 2.5"; interior and exterior windings (slotted assembly) |
| Voice Coil Coupling |
Encapsulating voice coil-to-former technology (patent pending) |
| Motor Technology |
Proprietary split yoke pass-through (patent pending) |
| Cone |
Carbon fibre / PMI / glass fibre composite |
| Dust Cap |
Aluminium |
| Surround |
Injection-moulded foam with VAST technology |
| Spiders |
Dual Nomex progressive with integrated lead wires |
| Basket |
Aluminium die-cast with integrated heat sink fins |
| Shorting Ring |
Integrated copper cap heat-sinking (IDHS) |
| Pole Piece |
Vented |
| Input Terminals |
Custom insulated push spring 10 AWG |
| Trim Ring |
Detachable die-cast aluminium (included) |
| Grille |
Optional insert (sold separately) |
| Enclosure Optimisation |
Sealed |
| Frequency Response |
Confirm with supplier |
| Sensitivity |
Confirm with supplier |
| Xmax |
Confirm with supplier |
| Mounting Depth |
Confirm with supplier |
| Cutout Diameter |
Confirm with supplier |
| Shipping Weight |
Confirm with supplier |
| Warranty |
Confirm with supplier |
Compatible With
- Mono amplifiers stable at 2 ohms, rated at or near 600W RMS
- Rockford Fosgate Power T1 and T2 series mono amplifiers
- Custom sealed enclosures designed for the T1S2-12 confirm recommended enclosure volume with Rockford Fosgate documentation before building
- Vehicles where traditional-depth subwoofers will not fit: behind-seat ute and truck installations, shallow boot floor vehicles, and custom fabrication builds with depth constraints
- Rockford Fosgate T1S-1X12 slim sealed loaded enclosure (purpose-built enclosure for the T1 slim driver range)
- Rockford Fosgate 10 AWG and heavy-gauge wiring kits for 2-ohm mono amplifier installation
- Rockford Fosgate RCA cables and signal processors
Frequently Asked Questions
How does the T1S2-12 achieve T1-level performance in a slimline format? The T1S2-12 uses a proprietary slotted voice coil assembly with interior and exterior windings (patent pending) that enables long excursion travel from a reduced mounting depth the key constraint of conventional shallow drivers. Combined with the split yoke pass-through motor technology (patent pending), neodymium motor structure, and encapsulating voice coil coupling, the T1S2-12 is engineered to deliver near-identical performance to traditional-depth T1 subwoofers from a significantly shallower installation profile.
What impedance does the T1S2-12 present to the amplifier? The T1S2-12 is a single 2-ohm voice coil driver, presenting a direct 2-ohm load to the amplifier. No wiring configuration is required connect a 2-ohm stable mono amplifier rated at or near 600W RMS and go.
Is the T1S2-12 suitable for the Rockford Fosgate T1S-1X12 loaded enclosure? The T1S-1X12 is a purpose-built slim sealed loaded enclosure from Rockford Fosgate that houses a T1 slim driver. Confirm with your supplier whether the T1S2-12 is the specific driver variant installed in the T1S-1X12 or whether it is compatible as a replacement driver before purchasing.
What enclosure type is the T1S2-12 optimised for? The T1S2-12 is specifically optimised for sealed enclosures. Rockford Fosgate has tuned the driver's parameters for sealed alignment confirm recommended enclosure volume with official Rockford Fosgate documentation or a qualified installer before designing or building an enclosure.
Is a grille included with the T1S2-12? No. The T1S2-12 ships with a detachable die-cast aluminium trim ring only. An optional grille insert is available separately confirm the compatible part number with your supplier before purchasing.
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