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Variants
Delivers deep, punchy low-end with clarity at high volumes and proven long-term durability when paired with an appropriate amp and enclosure.
Buyer confidence
88%Highlights
- 1 Year Warranty
- Proprietary 8 AWG insulated allmetal input spring terminal connection
- Optimized and matched magnetic and complicance geometry
- Anodized aluminum heat sinking dust cap
Key specs
Full specs- Power Handling (Watts RMS)
- 800 Watts RMS 1600 Watts Max
- Shipping Weight
- 33.3 Lbs. (15.10 Kg.)
- Speaker Connector
- Compression Terminal
- Nominal Impedance
- Dual 4-Ohm
- Size
- 12"
- Mounting Depth
- 6.75 in. (171 mm)
- Voice Coil Diameter
- 3" (75.4 mm)
- Fs (Hz)
- 29.2
Key specs
Full specs- Power Handling (Watts RMS)
- 800 Watts RMS 1600 Watts Max
- Shipping Weight
- 33.3 Lbs. (15.10 Kg.)
- Speaker Connector
- Compression Terminal
- Nominal Impedance
- Dual 4-Ohm
Highlights
Overview- 1 Year Warranty
- Proprietary 8 AWG insulated allmetal input spring terminal connection
- Optimized and matched magnetic and complicance geometry
Review highlights
Based on customer reviewsRockford Fosgate Power 12" T1 4-Ohm DVC Subwoofer — massive, clear, and built to last
Delivers deep, punchy low-end with clarity at high volumes and proven long-term durability when paired with an appropriate amp and enclosure.
What buyers praise
- Huge, punchy bass — excellent slam for a single 12"
- Clear low frequencies that stay defined at higher volumes
What to watch for
- Requires a powerful amplifier — not suited to underpowered setups
Overview
The Power 12" T1 (T1D412) is a Rockford Fosgate car/truck subwoofer that pairs a 12" driver with dual 4‑ohm voice coils and 800 Watts RMS handling for high-output bass.
Best for
- Drivers wanting a compact 12" sub with high power handling and modern design features for car or truck audio systems.
Key points
- 12" woofer with dual 4‑ohm voice coils (DVC)
- 800 Watts RMS power handling
- VAST surround increases effective cone area (up to 25%) for stronger output
- FlexFit basket for flexible installation options
- Includes grille with integral trim ring for a finished appearance
- Technologies: Stitched Tinsel Leads, Anodized Aluminum Voice Coil Former, Inductive Damping Heat Sink, SWIFT™ Terminals
Fit and use
Designed for installation in cars and trucks. Use with an amplifier that matches the subwoofer's RMS rating and impedance capabilities (dual 4‑ohm coils allow multiple wiring options). The included grille provides a finished look for visible installations.
What to know
Match amplifier RMS output and impedance wiring to the DVC configuration to achieve reliable performance. VAST surround increases surface cone area up to 25%, helping this 12" driver perform more like a larger woofer. The FlexFit basket provides installation flexibility; verify fit for your vehicle and enclosure befor…
Highlights
Key features
- 1 Year Warranty
- Proprietary 8 AWG insulated allmetal input spring terminal connection
- Optimized and matched magnetic and complicance geometry
- Anodized aluminum heat sinking dust cap
- Kevlar fiber reinforced paper cone
- Anodized aluminum voice coil former / copper clad aluminum wire
- Periodic-stitched fatigue resistant tinsel lead wire
- Optimized pole piece and spider venting
- High-temp voice coil with spun-laced Nomex® re-inforcement collar
- Rigid die-cast aluminum basket
- Symmetrical dual progressive roll tear resistant poly-cotton spiders
- Stitched Tinsel Leads
More info
Manufacturer details
Innovative technologies allow the T1D412 Power subwoofer to perform like a larger woofer over the previous model. The T1 12” features dual 4-Ohm voice coils, 800 Watts RMS power handling, and includes a grille with integral trim ring.
Additional details
The Power Series T1D412 Dual 4-Ohm subwoofer builds on innovative new Rockford Fosgate technologies. Built for cars and trucks, these bad boys have patented VAST technology that increases surface cone area up to 25% so the T1D412 performs like a much larger woofer over the previous model. The new FlexFit basket not only looks the part but it provides extreme flexibility for extreme installations. Clean, high tech and ready to set off car alarms, the T1D412 is here!
Looking for more options? Check out all of our subwoofers.
Technologies
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
Patent: Patent Pending
VAST Surround - Subs
Rockford Fosgate's proprietary surround technique, VAST, provides up to a 25% increase in the speakers effective
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
Inductive Damping Heat Sink
Secures directly to the top of magnet structure to improve system efficiency by reducing both distortion and back
SWIFT™ Terminals
Removing and inverting the center plug allows the voice coils to quickly be configured in a Series or Parallel
FlexFit Basket - Subwoofer
The slot mounted frame pattern of the FlexFit basket utilizes slots (where feasible) instead of single screw sized
Specs
Specifications
24
| Power Handling (Watts RMS) | 800 Watts RMS 1600 Watts Max |
| Shipping Weight | 33.3 Lbs. (15.10 Kg.) |
| Speaker Connector | Compression Terminal |
| Nominal Impedance | Dual 4-Ohm |
| Size | 12" |
| Mounting Depth | 6.75 in. (171 mm) |
| Voice Coil Diameter | 3" (75.4 mm) |
| Fs (Hz) | 29.2 |
| Woofer Displacement | 0.106 cu. ft. (3.0 Liters) |
| Cutout Diameter | 11.25 in. (285 mm) |
| Qts | 0.61 |
| Qes | 0.71 |
| Qes | 0.71 |
| Qms | 4.50 |
| Vas (Liters) | 55.8 |
| Xmax (mm) | 16 |
| Re (Ohms) | 6.50 |
| Le (mH) | 2.4 |
| Magnet Weight (oz) | 123 oz. (3.48 kg) |
| SPL (dB @ 1w/1m) | 85 |
| Subwoofer Type | Standard |
| Voice Coil Type | Dual Voice Coil |
| Sealed Box Volume (Vb) | 1.25 cu. ft. (35.3 Liters) |
| Vented Box Volume (Vb) | 1.75 cu. ft. (49.5 Liters) |
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Installation resources
Wiring diagrams
9
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
Wiring Diagram #8
Source: Rockford Fosgate
Wiring Diagram #9
Source: Rockford Fosgate
Box Advisor
Sealed Enclosure
- Recommended volume
- 1.25 cu ft
- Volume range
- 1 cu ft to 1.5 cu ft
- Dimensions
- 20 in W x 16 in H x 10.25 in D
- F3
- 39.6 Hz
- Qtc
- 0.89
- Port / ID
- 38 in
- Subwoofer size
- 40 in
- Impedance
- 4 ohm
- Power handling (RMS)
- 800 W
Vented Enclosure
- Recommended volume
- 1.75 cu ft
- Volume range
- 1.5 cu ft to 2 cu ft
- Dimensions
- 25.5 in W x 16.5 in H x 10.25 in D
- F3
- 33.2 Hz
- Tuning (Fb)
- 40.1 Hz
- Port / ID
- 40 in
- Subwoofer size
- 40 in
- Impedance
- 4 ohm
- Power handling (RMS)
- 800 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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