T1D212 12" Power T1 2-Ohm DVC Subwoofer

Innovative technologies allow the T1D212 subwoofer to perform like a larger woofer over the previous model. The T1 12” features dual 2-Ohm voice coils, 800 Watts RMS power handling, and includes a grille with integral trim ring.

  • Symmetrical dual progressive roll tear resistant poly-cotton spiders
  • Periodic-stitched fatigue resistant tinsel lead wire
  • Proprietary 8 AWG insulated allmetal input spring terminal connection
  • High-temp voice coil with spun-laced Nomex® re-inforcement collar
  • Optimized and matched magnetic and complicance geometry
  • Anodized aluminum heat sinking dust cap
  • Kevlar fiber reinforced paper cone
  • Rigid die-cast aluminum basket
  • Optimized pole piece and spider venting
  • Anodized aluminum voice coil former / copper clad aluminum wire
Klippel Verified
VAST Surround - Subwoofers
Flex Fit Basket - Subwoofer
SWIFT™ Terminals
IDHS™ Inductive Damping Heat Sink

T1D212

The Power Series T1D212 Dual 2-Ohm subwoofer builds on innovative new Rockford Fosgate technologies. These bad boys have patented VAST technology that increases surface cone area up to 25% so the T1D212 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 T1D212 is here!


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 - Subwoofers

VAST Surround - Subwoofers

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

Flex Fit 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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IDHS™ Inductive Damping Heat Sink

IDHS™ Inductive Damping Heat Sink

Secures directly to the top of magnet structure to improve system efficiency by reducing both...
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CEA-2031 Compliant: CEA-2031 Guidelines
Size: 12"
Nominal Impedance: Dual 2-Ohm
Power Handling (Watts RMS): 800 Watts RMS
1600 Watts MAX
Voice Coil Diameter: 3" (75.5 mm)
Magnet Weight (oz): 123 oz. (3.48 kg)
Speaker Connector: Compression Terminal
Fs (Hz): 28
Re (Ohms): 3.25
Le (mH): 1.8
Qms: 4.50
Qes: 0.59
Qts: 0.52
Vas (Liters): 55.8
Sd (cm2): 548
SPL (dB @ 1w/1m): 85
Xmax (mm): 16
Woofer Displacement (in): 0.106 cu.ft. (3.0 Liters)
Cutout Diameter (in): 11.25 in. (28.57 cm)
Mounting Depth (in): 6.75 in. (17.15 cm)
Shipping Weight: 33.3 Lbs. (15.10 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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EBP
Amp Power Range
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.
T1D212_T1D412_sealed_1.gif
  • All sides use 3/4" (18mm) thick MDF.
  • All box dimensions are external.
  • Dimensions above include Vb + woofer displacement.
    Standard Metric
Vb 1.25 cu. ft. 35.40 Liters
F3 41.80 Hz  
Qtc 0.77  
Height 16.00 in. 40.64 cm
Width 20.00 in. 50.80 cm
Depth 10.25 in. 26.04 cm
Spk. Cutout 0.000 in. 0.000 cm
Spk. Depth 6.75 in. 17.15 cm
Vd 0.000 cu. ft. 0.000 Liters
EXPORT
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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.
T1D212_T1D412_vented_1.gif
  • 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 1.75 cu. ft. 49.55 Liters
F3 33.30 Hz  
Fb 40.10 Hz  
Height 16.50 in. 41.91 cm
Width 25.50 in. 64.77 cm
Depth 10.25 in. 26.04 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 6.75 in. 17.15 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 (Marine, Environmental, etc).
  • Select another Woofer Size (10", 12", etc).

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