10" Rockford Fosgate Power T1 Slim 1Ω SVC Subwoofer for Ported Enclosures - T1S1-10P

The re-engineered T1 Slim subwoofer series delivers next-level reliability and tactile bass performance, offering improved responsiveness and exceptional thermal management. Available in both sealed and ported options, these subwoofers are designed for the tightest installations, while still providing all the bass you demand. Sold individually (1 each).
Sound of Surround – Utilizing Nano Cell Direct injection and a bonded co-molded surround, the T1 series subwoofers ensures maximum reliability and high efficiency low end bass extension.
VCCF (Voice Coil Composite Former) – The voice coil is the heart of any speaker, and ours is crafted from a specialized composite material rigorously tested to withstand extreme heat and low thermal conditions, ensuring no-quit power and minimal motor distortion.
Dual Spiders – The voice coil carrier features a asymmetric aligned 2-spider design to deliver enhanced bass response. Each spider works together to handle a range of low-end notes, ensuring you never miss any bass hits in your music.
Perfect Fit – Available in multiple options, including sealed and ported options, these subwoofers make it easy to find the perfect fit for any installation, no matter the space.
Overview
MAX BASS, SLIM SPACE
This Gen-2 version of Rockford Fosgate’s "T1 Slim" subwoofer is designed to deliver big bass in a compact, shallow design. It’s been re-engineered with more mass to fit in smaller enclosures and includes upgrades like a new surround and better heat management. The “P” (ported) version is designed for ported enclosures and work best in open-air environments (convertible).
The voice coil now uses pure copper wire for better conductivity, paired with a new composite former to dissipate heat and reduce distortion. The suspension utilizes a new polymer surround, made using an advanced NCDI (Nano Cell Direct Injection) process to enhance efficiency and durability without risking dry-rot.
FEATURES AT A GLANCE
- Supercritical synthetic organic polymer surround
- Linear Carbon Fiber/PMI/Glass Fiber cone with aluminum dustcap
- Chemically bonded co-molded surround for a stronger attachment
- Symmetrical ultra-flexible braided flat tinsel leads resistant to fatigue
- Dual Nomex progressive spiders with stitched tinsel leads
- Dual wound single 2.5" pure copper voice coil with interior and exterior coils
- High temp, high energy Neodymium motor structure
- Diecast aluminum frame with integrated heat sink fins
- Detachable die cast aluminum trim ring
- Optional protective grille insert available
- Custom 10 AWG slot loaded brass push spring terminals with corrosion resistant tin plating
- Optimized for compact ported enclosures
- 1 Year Warranty
T1 Slim Launch
Announcing the re-engineered T1 Slim subwoofer series that delivers next-level reliability and tactile bass performance, offering improved responsiveness and exceptional thermal management.
T1 Slim Overview
The T1 Slim subwoofers are available in both sealed and ported options, designed for the tightest installations, while still providing all the bass you demand.
Technologies

NCDI Surround
This improved surround uses a supercritical synthetic organic polymer created through an NDCI (Nano-Cell Direct Injection) molding process. This high efficiency design offers low distortion with low-end bass extension in a surround technology resistant to dry rot.

VCCF (Voice Coil Composite Former)
The voice coil former is comprised of a high-performance composite material (polyimide resin glass & epoxy resin glass fiber) rigorously tested to withstand extreme heat. This material has low magnetic susceptibility and is an insulator to prevent inductive effects and eddy currents, resulting in minimal motor distortion.

Dual Spiders
The voice coil carrier features an asymmetrically aligned 2-spider design to deliver enhanced bass response. Each spider works together to handle a range of low-end notes, ensuring you never miss any bass-hits in your music.

Multi-Vent Pole Piece
The pole piece uses a voice coil direct venting array system to further dissipate heat generated by the voice coil.
CTA-2031
Power handling on Rockford Fosgate speakers conform to CTA-2031 industry standards.
Klippel Verified
Klippel is a speaker certification program allowing us to deliver the best possible subwoofers.
IDHS™ Inductive Damping Heat Sink
Secures directly to the top of magnet structure to improve system efficiency by reducing both distortion ...
SYMS
The unique motor structure design allows full excursion capabilities of the woofers voice coil while allowing ...
EVCC
Our EVCC (Encapsulated Voice Coil Coupling) technology connects to the woofers voice coil from both the ...
VAST Surround - Subs
The Vertical Attach Surround Technique significantly increases a subwoofer's effective radiating cone area up to 25%.
FlexFit Basket - Subwoofer
The slot mounted frame pattern allows fine-tuning of the subwoofer's mounting position.
Stitched Tinsel Leads
Improved reliability and performance by reducing fatigue and possible shorting.
| Specifications | |
|---|---|
| Size | 10" |
| Subwoofer Type | Shallow |
| Frequency Response | 32 - 250 Hz |
| Nominal Impedance | 1-Ohm |
| Re (Ohms) | 0.9 |
| Fs (Hz) | 42 |
| Qms | 9.43 |
| Qes | 1.05 |
| Qts | 0.95 |
| Sd (cm2) | 356 |
| Vas (Liters) | 13.1 |
| Le (mH) | 0.45 |
| Xmax (mm) | 15 |
| SPL (dB @ 1w/1m) | 82 |
| Power Handling (Watts RMS) | 500 Watts RMS 1000 Watts Max |
| Voice Coil Type | Single Voice Coil |
| Voice Coil Diameter | 2.5" (63.5mm) |
| Magnet Weight (oz) | 15.1 oz. (0.43 Kg) |
| Speaker Connector | 10 AWG slot loaded |
| Cutout Diameter | 9.13 in. (232 mm) |
| Mounting Depth | 3.01 in. (76.5 mm) |
| Woofer Displacement | 0.028 cu. ft. (0.82 Liters) |
| Vented Box Volume (Vb) | 1.0 - 1.50 cu.ft. (28.3 - 42.5 Liters) |
| In The Box | (1) 1125-73494-01 Bit Driver, 40mm 5.0mm ,(4) 1125-80626-01 4mm Hex, M5x43mm ,(8) 1125-80626-01 4mm Hex, M5x43mm Self Tap |
| Shipping Weight | 11 Lbs. (4.99 Kg.) |