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Rockford Fosgate Power T0D412Power 12" T0 4-Ohm DVC Subwoofer
The T0D412 is a 12" subwoofer that follows the Power Series design approach, offering dual 4‑ohm voice coils and 700 Watts RMS power handling. It includes a grille with an integral trim ring and incorporates VAST surround and FlexFit basket technologies.
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- Nominal Impedance
- Dual 4-Ohm
- Voice Coil Diameter
- 3" (75.5 mm)
- Shipping Weight
- 31.16 Lbs. (14.13 kg)
- Speaker Connector
- Compression Terminal
- Fs (Hz)
- 26
- Re (Ohms)
- 6.20
- Le (mH)
- 8.4
- Qts
- 0.53
Key specs
Full specs- Nominal Impedance
- Dual 4-Ohm
- Voice Coil Diameter
- 3" (75.5 mm)
- Shipping Weight
- 31.16 Lbs. (14.13 kg)
- Speaker Connector
- Compression Terminal
Highlights
Overview- 1 Year Warranty
- Proprietary 8 AWG insulated allmetal input spring terminal connection
- Optimized and matched magnetic and complicance geometry
Overview
The T0D412 is a 12" subwoofer that follows the Power Series design approach, offering dual 4‑ohm voice coils and 700 Watts RMS power handling. It includes a grille with an integral trim ring and incorporates VAST surround and FlexFit basket technologies.
Best for
- Buyers who want a high‑power 12" car subwoofer with wiring flexibility (dual voice coils) and design features that incr…
Key points
- 12" diameter, dual 4‑ohm voice coils (DVC)
- 700 Watts RMS power handling
- VAST surround increases cone surface area up to 25%
- FlexFit basket for flexible installation options
- Klippel Verified and CEA-2031 listed
- Stitched tinsel leads and anodized aluminum voice coil former
Fit and use
Confirm available enclosure and mounting space for a 12" driver and plan amplifier matching to the 700W RMS rating. Dual 4‑ohm coils provide wiring options to achieve different final impedances; match wiring and amp load accordingly. The grille with integral trim ring is included.
What to know
This model follows the Power Series design and lists technologies like VAST and FlexFit that affect cone area and mounting flexibility. Verify amplifier RMS output and final impedance after wiring the dual coils to ensure compatibility. Check vehicle space and enclosure requirements before purchase.
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
- Anodized aluminum voice coil former
- Periodic-stitched fatigue resistant tinsel lead wire
- Optimized pole piece and spider venting
- Rigid die-cast aluminum basket
- High-temp voice coil with spun-laced Nomex® re-inforcement collar
- Kevlar fiber reinforced paper cone
- Klippel Verified
- CEA-2031
More info
Manufacturer details
The T0D412 subwoofer mimics its performance and design from our older Power Series brothers. Our T0 12” features dual 4-Ohm voice coils, 700 Watts RMS power handling, and includes a grille with integral trim ring.
Additional details
The T0D412 12" 4-ohm Dual Voice Coil subwoofer mimics the performance and design from its older Power Series brothers. The T0 subwoofers feature VAST technology that increases surface cone area up to 25% so it performs like a much larger woofer. The FlexFit basket not only looks the part but it provides extreme flexibility for extreme installations. Clean, high tech, and high power handling characteristics let this subwoofer wear the torture-tested "Power Series" badge!
Technologies
Klippel Verified
To adorn the ‘Verified with Klippel’ mark, the qualifying company’s loudspeaker engineering personnel must be
CEA-2031
Power handling on Rockford Fosgate speakers conform to CEA-2031 industry standards. This means your speaker has
Stitched Tinsel Leads
Multipoint "periodic" stitched lead wire technique reduces the mass of each tinsel lead and spreads stress and
Patent: Patent Pending
VAST Surround - Subs
Rockford Fosgate's proprietary surround technique, VAST, provides up to a 25% increase in the speakers effective
FlexFit Basket - Subwoofer
The slot mounted frame pattern of the FlexFit basket utilizes slots (where feasible) instead of single screw sized
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
SWIFT™ Terminals
Removing and inverting the center plug allows the voice coils to quickly be configured in a Series or Parallel
Specs
Specifications
20
| Nominal Impedance | Dual 4-Ohm |
| Voice Coil Diameter | 3" (75.5 mm) |
| Shipping Weight | 31.16 Lbs. (14.13 kg) |
| Speaker Connector | Compression Terminal |
| Fs (Hz) | 26 |
| Re (Ohms) | 6.20 |
| Le (mH) | 8.4 |
| Qts | 0.53 |
| Qes | 0.58 |
| Qms | 6.00 |
| Qts | 0.53 |
| Qes | 0.58 |
| Qms | 6.00 |
| Vas (Liters) | 55.1 |
| Xmax (mm) | 14.8 |
| Cutout Diameter | 11.25 in. (285 mm) |
| Woofer Displacement | 0.106 cu. ft. (3.0 Liters) |
| Power Handling (Watts RMS) | 700 Watts RMS 1400 Watts Max |
| Magnet Weight (oz) | 106 oz. (3.00 Kg.) |
| Sd (cm2) | 548 |
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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
- 25.25 in W x 16.5 in H x 9 in D
- F3
- 36 Hz
- Qtc
- 0.83
- Port / ID
- 72 in
- Subwoofer size
- 74 in
- Impedance
- 4 ohm
- Power handling (RMS)
- 700 W
Vented Enclosure
- Recommended volume
- 1.75 cu ft
- Volume range
- 1.5 cu ft to 2 cu ft
- Dimensions
- 28 in W x 16.5 in H x 10 in D
- F3
- 34 Hz
- Tuning (Fb)
- 40.1 Hz
- Port / ID
- 74 in
- Subwoofer size
- 74 in
- Impedance
- 4 ohm
- Power handling (RMS)
- 700 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.
Popular Questions
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