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Variants
The Rockford Fosgate Power 12" T1 Slim Single 2-Ohm Subwoofer delivers unexpectedly powerful, low-end output for a shallow-mount 12". Reviewers praise its punch, fit for tight installations, and overall quality — a strong choice when space is limited.
Buyer confidence
85%Highlights
- 1 Year Warranty
- Injection molded foam surround with VAST™
- Dual Nomex progressive spiders with stitched tinsel leads
- Diecast aluminum frame with integrated heat sink fins
Key specs
Full specs- Power Handling (Watts RMS)
- 600 Watts RMS 1200 Watts Max
- Subwoofer Type
- Shallow
- Nominal Impedance
- 2-Ohm
- Sd (cm2)
- 560
- Magnet Weight (oz)
- 14.42 oz. (0.41 Kg)
- Size
- 12"
- Qes
- 1.17
- Qms
- 11.22
Key specs
Full specs- Power Handling (Watts RMS)
- 600 Watts RMS 1200 Watts Max
- Subwoofer Type
- Shallow
- Nominal Impedance
- 2-Ohm
- Sd (cm2)
- 560
Highlights
Overview- 1 Year Warranty
- Injection molded foam surround with VAST™
- Dual Nomex progressive spiders with stitched tinsel leads
Review highlights
Based on customer reviewsRockford Fosgate Power 12" T1 Slim — slim profile, big bass
The Rockford Fosgate Power 12" T1 Slim Single 2-Ohm Subwoofer delivers unexpectedly powerful, low-end output for a shallow-mount 12". Reviewers praise its punch, fit for tight installations, and overall quality — a strong choice when space is limited.
What buyers praise
- Punchy, deep bass despite shallow mounting depth
- Very shallow mounting fits under seats and tight cargo areas
What to watch for
- Performs best with specific enclosure volume — one reviewer prefers about 1.1 cu ft (others used larger/ported boxes), so confirm box specs for your application
Overview
A slim-profile 12" subwoofer engineered to deliver deep bass where traditional, deeper drivers won’t fit. The T1S2-12 pairs a single 2-ohm voice coil with a long-excursion, slotted voice coil assembly and dual spiders to maintain strong low-end performance in shallow enclosures.
Best for
- Installations with limited mounting depth
- Customers who want a 12" subwoofer without a deep enclosure
- Setups that benefit from a single 2-ohm voice coil for simpler wiring
Key points
- Slimline 12" design for reduced mounting depth
- Single 2-ohm voice coil simplifies wiring configurations
- Dual asymmetric aligned spiders for enhanced bass control across low frequencies
- Slotted voice coil assembly engineered for long excursion travel
- Available in sealed and ported options to suit different enclosure choices
- Technologies: FlexFit Basket, CEA-2031 compliance, Klippel Verified, Inductive Damping Heat Sink, Anodized Aluminum Voice Coil Former, Stitched Tinsel Leads
Fit and use
Intended for vehicles or installations where standard-depth subwoofers cannot be accommodated. Choose sealed or ported enclosure options based on desired bass character and available space. Sold individually (1 each); match the subwoofer with an appropriate amplifier and enclosure design for best performance.
What to know
Performance depends on enclosure type, amplifier power, and system tuning—refer to full specifications for exact electrical and enclosure requirements. The T1S2-12 is designed to approximate traditional Power T1 performance in a shallower package; consult technical resources for details before purchase.
Highlights
Key features
- 1 Year Warranty
- Injection molded foam surround with VAST™
- Dual Nomex progressive spiders with stitched tinsel leads
- Diecast aluminum frame with integrated heat sink fins
- Custom 10 AWG slot loaded brass push spring terminals with corrosion resistant tin plating
- Optimized for sealed enclosures
- Detachable die cast aluminum trim ring
- Vented pole piece
- Linear Carbon Fiber/PMI/Glass Fiber cone with aluminum dustcap
- High temp, high energy Neodymium motor structure
- Optional protective grille insert available
- Dual wound 2.5" CCA voice coil with interior/exterior windings
More info
Manufacturer details
The Power T1S2-12 is a slimline 12" subwoofer designed for spaces where traditional sized woofers will not fit. Features a single 2-ohm voice coil for simplified wiring configurations. Sold individually (1 each).
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.
Additional details
Need bass but don't have a lot of space? How about more power handling than your average shallow subwoofer? Well, the T1 "Slimline" subwoofers are not your average shallow, in fact, they have been painstakingly designed to near exact performance characteristics of traditional sized Power T1 subwoofers you're already familiar with.
We're calling these "slim" subwoofers because they don't take a lot of depth and offer bass response similar to a traditional sized model. How can this be true? Well, let's just say the Wizards-of-Fos engineered an ingenious slotted voice coil assembly that exhibits long excursion travel. Don't worry, you don't need to understand it, you just have to listen to how awesome they sound!
Technologies
FlexFit Basket - Subwoofer
The slot mounted frame pattern of the FlexFit basket utilizes slots (where feasible) instead of single screw sized
Patent: 9,008,348
SYMS
The unique motor structure design allows full excursion capabilities of the woofers voice coil while allowing ...
Patent: 9,025,809
EVCC
Our EVCC (Encapsulated Voice Coil Coupling) technology connects to the woofers voice coil from both the ...
Stitched Tinsel Leads
Multipoint "periodic" stitched lead wire technique reduces the mass of each tinsel lead and spreads stress and
CEA-2031
Power handling on Rockford Fosgate speakers conform to CEA-2031 industry standards. This means your speaker has
Inductive Damping Heat Sink
Secures directly to the top of magnet structure to improve system efficiency by reducing both distortion and back
Klippel Verified
To adorn the ‘Verified with Klippel’ mark, the qualifying company’s loudspeaker engineering personnel must be
Anodized Aluminum Voice Coil Former
Two things generally happen when voice coils heat-up. They can generate heat close to the melt-down temp of their
Patent: Patent Pending
VAST Surround - Subs
Rockford Fosgate's proprietary surround technique, VAST, provides up to a 25% increase in the speakers effective
Specs
Specifications
25
| Power Handling (Watts RMS) | 600 Watts RMS 1200 Watts Max |
| Subwoofer Type | Shallow |
| Nominal Impedance | 2-Ohm |
| Sd (cm2) | 560 |
| Magnet Weight (oz) | 14.42 oz. (0.41 Kg) |
| Size | 12" |
| Qes | 1.17 |
| Qms | 11.22 |
| Qts | 1.06 |
| Fs (Hz) | 37 |
| Speaker Connector | 10 AWG slot loaded |
| Re (Ohms) | 1.7 |
| Voice Coil Type | Single Voice Coil |
| Voice Coil Diameter | 2.98" (75 mm) |
| Xmax (mm) | 15 |
| SPL (dB @ 1w/1m) | 85 |
| Mounting Depth | 3.01 in. (76.5 mm) |
| SPL (dB @ 2.8v/1m) | 88 |
| Le (mH) | 0.45 |
| Vas (Liters) | 32.4 |
| Cutout Diameter | 11.22 in. (285 mm) |
| Shipping Weight | 16.15 Lbs. (7.3 Kg.) |
| Woofer Displacement | 0.042 cu. ft. (1.2 Liters) |
| Sealed Box Volume (Vb) | 1.1 cu. ft. (31.1 Liters) |
| Vented Box Volume (Vb) | 2.0 cu. ft. (56.6 Liters) |
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Installation resources
Wiring diagrams
7
Wiring Diagram #1
Source: Rockford Fosgate
Wiring Diagram #2
Source: Rockford Fosgate
Wiring Diagram #3
Source: Rockford Fosgate
Wiring Diagram #4
Source: Rockford Fosgate
Wiring Diagram #5
Source: Rockford Fosgate
Wiring Diagram #6
Source: Rockford Fosgate
Wiring Diagram #7
Source: Rockford Fosgate
Box Advisor
Sealed Enclosure
- Recommended volume
- 1.1 cu ft
- Volume range
- 0.75 cu ft to 1.25 cu ft
- Dimensions
- 22 in W x 13 in H x 9.5 in D
- F3
- 39.9 Hz
- Qtc
- 1.18
- Port / ID
- 20 in
- Subwoofer size
- 20 in
- Impedance
- 5 ohm
- Power handling (RMS)
- 600 W
Vented Enclosure
- Recommended volume
- 2 cu ft
- Volume range
- 1.75 cu ft to 2.25 cu ft
- Dimensions
- 22.5 in W x 14.5 in H x 14.25 in D
- F3
- 28 Hz
- Tuning (Fb)
- 35 Hz
- Port / ID
- 20 in
- Subwoofer size
- 20 in
- Impedance
- 5 ohm
- Power handling (RMS)
- 600 W
Support
Return Authorization
If you bought this product from Onkar Electronics, use the Contact Us page on the Onkar Electronics website and we will help with return authorization and warranty support. If you purchased it from another dealer, contact that authorized dealer first for return assistance.
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