T0D412

Power 12" T0 4-Ohm DVC Subwoofer

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.

  • Anodized aluminum heat sinking dust cap
  • Anodized aluminum voice coil former
  • High-temp voice coil with spun-laced Nomex® re-inforcement collar
  • Kevlar fiber reinforced paper cone
  • Optimized and matched magnetic and complicance geometry
  • Optimized pole piece and spider venting
  • Periodic-stitched fatigue resistant tinsel lead wire
  • Proprietary 8 AWG insulated allmetal input spring terminal connection
  • Rigid die-cast aluminum basket
  • 1 Year Standard Warranty warranty info

T0D412

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!
CEA-2031

CEA-2031

Power handling on Rockford Fosgate speakers conform to CEA-2031 industry standards.
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Klippel Verified

Klippel Verified

Klippel is a speaker certification program allowing us to deliver the best possible subwoofers.
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Stitched Tinsel Leads

Stitched Tinsel Leads

Improved reliability and performance by reducing fatigue and possible shorting.
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Anodized Aluminum Voice Coil Former

Anodized Aluminum Voice Coil Former

Rockford Fosgate subwoofers use anodized aluminum voice coil formers that provide superior heat...
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VAST Surround - Subs

VAST Surround - Subs

The Vertical Attach Surround Technique significantly increases a subwoofer's effective radiating...
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FlexFit Basket - Subwoofer

FlexFit Basket - Subwoofer

The slot mounted frame pattern allows fine-tuning of the subwoofer's mounting position.
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SWIFT™ Terminals

SWIFT™ Terminals

Allows the voice coils to quickly be configured in a Series or Parallel wiring configuration.
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CEA-2031 Compliant: CEA-2031 Guidelines
Size: 12"
Power Handling (Watts RMS): 700 Watts RMS
1400 Watts Max
Nominal Impedance: Dual 4-Ohm
Voice Coil Diameter: 3" (75.5 mm)
Magnet Weight (oz): 106 oz. (3.00 Kg.)
Speaker Connector: Compression Terminal
Fs (Hz): 26
Re (Ohms): 6.20
Le (mH): 8.4
Qms: 6.00
Qes: 0.58
Qts: 0.53
Vas (Liters): 55.1
Sd (cm2): 548
SPL (dB @ 1w/1m): 84.1
Xmax (mm): 14.8
Woofer Displacement: 0.106 cu. ft. (3.0 Liters)
Cutout Diameter: 11.25 in. (285 mm)
Mounting Depth: 6.875 in. (174.6 mm)
Shipping Weight: 31.16 Lbs. (14.13 kg)

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Return Authorization

Contact the Authorized Rockford Fosgate Dealer you purchased this product from. If you need further assistance, call 1-800-669-9899 for Rockford Customer Service. You must obtain an RA# (Return Authorization number) to return any product to Rockford Fosgate. You are responsible for shipment of product to Rockford.

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Rockford FosgateWoofer WiringWizard



Available Wiring Diagrams


Please consult your amplifier owner's manual for lowest recommended impedance.

Wiring Diagram #1


Wiring Diagram #2


Wiring Diagram #3


Wiring Diagram #4


Wiring Diagram #5


Wiring Diagram #6


Wiring Diagram #7


Wiring Diagram #8


Wiring Diagram #9


Speaker Polarity
Your woofer may use one of the following to identify (+/-) terminals.
Positive +
Red Post
Purple (4Ω)
Red (8Ω)
Negative -
Black Post
No Dot
No Dot
EBP

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Amp Power Range

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Sealed Recommended Design
This is the optimum recommended sealed woofer enclosure and replicates the optimum enclosure listed in the owner's manual. You may notice slight differences between online information and the owner's manual due to continual improvement on usage of our products.
T0D210_T0D410_sealed.png
  • All sides use 3/4" (18mm) thick MDF.
  • All box dimensions are external.
  • Dimensions above include Vb + woofer displacement.
  Standard Metric
Vb (Gross) 1.25 cu. ft. 35.40 Liters
F3 36.00 Hz  
Qtc 0.83  
Height 16.50 in. 41.91 cm
Width 25.25 in. 64.14 cm
Depth 9.00 in. 22.86 cm
Spk. Cutout 0.000 in. 0.000 cm
Spk. Depth 6.88 in. 17.46 cm
Vd 0.000 cu. ft. 0.000 Liters

EXPORT

Modify This Box Wire This Woofer
Vented Recommended Design
This is the optimum recommended vented woofer enclosure and replicates the optimum enclosure listed in the owner's manual. You may notice slight differences between online information and the owner's manual due to continual improvement on usage of our products.
T0D210_T0D410_vented.png
  • All sides use 3/4" (18mm) thick MDF.
  • All box dimensions are external.
  • Dimensions above include Vb + woofer/port displacement.
  • Port diagram for reference only and may require alternate placement.
  • An infrasonic filter is required for reliable performance in vented designs.
  Standard Metric
Vb (Gross) 1.75 cu. ft. 49.55 Liters
F3 34.00 Hz  
Fb 40.10 Hz  
Height 16.50 in. 41.91 cm
Width 28.00 in. 71.12 cm
Depth 10.00 in. 25.40 cm
Np 1 port  
Dp 4.00 in. diameter 10.16 cm diameter
Lp 9.00 in. long 22.86 cm long
Spk. Cutout 0.000 in. 0.000 cm
Spk. Depth 6.88 in. 17.46 cm
Vd 0.000 cu. ft. 0.000 Liters
Vp 0.065 cu. ft. 1.853 Liters

EXPORT

Modify This Box Wire This Woofer
Infinite Baffle Design
Not Recommended for Infinite Baffle
  • Baffle board uses 3/4" (18mm) thick MDF.
  • Baffle board & cavity air leaks can cause significant performance loss.
  • For optimum results, ensure cavity & baffle board are air tight.
  • An infrasonic filter is required for reliable performance in IB designs.

Do Not Use Infinite Baffle

This woofer is not recommended for Infinite Baffle; it is optimized for the design(s) above. If you require this type of design, here are some recommendations:

  • Select another Woofer Family (M1, M2, etc).
  • Select another Woofer Series (Prime, Punch, etc.).
  • Select another Woofer Size (10", 12", etc).

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