Rockford Fosgate
1000W RMS 15" DVC Subwoofer

Rockford Fosgate T1D415
Rockford Fosgate T1D415 Rockford Fosgate T1D415 Rockford Fosgate T1D415 Rockford Fosgate T1D415 Rockford Fosgate T1D415 Rockford Fosgate T1D415 Rockford Fosgate T1D415 Rockford Fosgate T1D415 Rockford Fosgate T1D415 Rockford Fosgate T1D415 Rockford Fosgate T1D415 Rockford Fosgate T1D415


Innovative technologies allow the T1D415 subwoofer to perform like a larger woofer over the previous model. The T1 15” features dual 4-Ohm voice coils, 1,000 Watts RMS power handling, and includes a grille with integral trim ring.

The Power Series T1D415 Dual 4-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 T1D415 is here!

  • Symmetrical Dual Progressive Roll Tear Resistant Poly-Cotton Spiders
  • Optimized and Matched Magnetic and Compliance Geometry
  • Proprietary 8 AWG Insulated All Metal Input Spring Terminal Connection
  • Anodized Aluminum Heat Sinking Dust Cap
  • Kevlar Fiber Reinforced Paper Cone
  • Periodic-Stitched Fatigue Resistant Tinsel Lead Wire
  • High-Temp Voice Coil with Spun-Laced Nomex® Re-inforcement Collar
  • Anodized Aluminum Voice Coil Former / Copper Clad Aluminum Wire
  • Optimized Pole Piece and Spider Venting
  • Rigid Die-cast Aluminum Basket
  • 1 Year Warranty


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

Inductive Damping Heat Sink

Secures directly to the top of magnet structure to improve system efficiency by reducing both distortion and back EMF (Electo-Magnetic force). Also radiates heat to reduce voice coil temperature.

Klippel Verified

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

VAST Surround

The Vertical Attach Surround Technique significantly increases a subwoofer's effective radiating cone area up to 25%.

FlexFit Basket

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

Anodized Aluminum Voice Coil Former

Rockford Fosgate subwoofers use anodized aluminum voice coil formers that provide superior heat dissipation (up to 100° at full power levels). Unlike traditional plastic substitutions, aluminum acts like a heat-sink to quickly dissipate thermal build-up on the voice coil. This keeps subwoofers cool during high SPL conditions.

Stitched Tinsel Leads

Improved reliability and performance by reducing fatigue and possible shorting.

SWIFT™ Terminals

Allows the voice coils to quickly be configured in a Series or Parallel wiring configuration.


Subwoofer Size
Nominal Impedance
Dual 4Ω
1000W RMS
Voice Coil Diameter
3" (75.5 mm)
Magnet Weight
229 oz (6.49 kg)
Speaker Connector
Compression Terminal
Voice Coil Type
Dual Voice Coil
27 Hz
6.5 Ω
3.6 mH
102 L
845 cm²
87.5 db @ 1w/1m
16.4 mm
Cutout Diameter
13.9375" (354 mm)
Mounting Depth
8.39" (213 mm)
Woofer Displacement
0.191 cu. ft. (5.4 L)
Sealed Box Volume
2.25 cu. ft. (63.7 L)
Vented Box Volume
2.66 cu. ft. (75.3 L)
53.75 lbs (24.4 kg)
More Information
Brand Rockford Fosgate
RMS Power 1000W RMS
Nominal Impedance 4 Ω
Shallow Mount No
Subwoofer Size 15"
Subwoofer Type Dual Voice Coil (DVC)