T1D215

Power 15" T1 2-Ohm DVC Subwoofer

Innovative technologies allow the T1D215 subwoofer to perform like a larger woofer over the previous model. The T1 15” features dual 2-Ohm voice coils, 1,000 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
  • 1 Year Standard Warranty warranty info
USD 699.99


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T1D215

The Power Series T1D215 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%. 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 T1D215 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 - 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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Inductive Damping Heat Sink

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: 15"
Subwoofer Type: Standard
Power Handling (Watts RMS): 1000 Watts RMS
2000 Watts Max
Nominal Impedance: Dual 2-Ohm
Voice Coil Type: Dual Voice Coil
Voice Coil Diameter: 3.0" (75.5 mm)
Magnet Weight (oz): 229 oz. (6.49 kg)
Speaker Connector: Compression Terminal
Fs (Hz): 26.3
Re (Ohms): 3.25
Le (mH): 1.6
Qms: 6.50
Qes: 0.46
Qts: 0.43
Vas (Liters): 102
Sd (cm2): 845
SPL (dB @ 1w/1m): 87.9
Xmax (mm): 16.4
Sealed Box Volume (Vb): 2.25 cu. ft. (63.7 Liters)
Vented Box Volume (Vb): 1.75 cu. ft. (75.3 Liters)
Woofer Displacement: 0.191 cu. ft. (5.4 Liters)
Cutout Diameter: 13.9375 in. (354 mm)
Mounting Depth: 8.39 in. (213 mm)
Shipping Weight: 54.1 Lbs. (24.53 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.
T1D215_T1D415_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) 2.25 cu. ft. 63.71 Liters
F3 43.00 Hz  
Qtc 0.72  
Height 18.00 in. 45.72 cm
Width 22.00 in. 55.88 cm
Depth 13.00 in. 33.02 cm
Spk. Cutout 0.000 in. 0.000 cm
Spk. Depth 8.39 in. 21.31 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.
T1D215_T1D415_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) 2.66 cu. ft. 75.32 Liters
F3 32.00 Hz  
Fb 32.00 Hz  
Height 18.00 in. 45.72 cm
Width 28.00 in. 71.12 cm
Depth 12.00 in. 30.48 cm
Np 1 port  
Dp 4.00 in. diameter 10.16 cm diameter
Lp 10.00 in. long 25.40 cm long
Spk. Cutout 0.000 in. 0.000 cm
Spk. Depth 8.39 in. 21.31 cm
Vd 0.000 cu. ft. 0.000 Liters
Vp 0.073 cu. ft. 2.059 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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