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Rockford Fosgate T1D415

15" Dual 4 Ohm Power T1 Series Car Subwoofer

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$699.99

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$329.99

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True Power You Can Feel

The T1D415 Power Series 15" Subwoofer by Rockford Fosgate has a peak power rating of 2000 watts and a RMS rating of 1000 watts. This sub will produce some ground shaking bass and is constructed with a kevlar fiber reinforced semi pressed paper cone and a VAST santoprene rubber surround. This woofer is also equipped with Inductive Damping Heat Sink, this helps radiate heat to reduce the voice coil temperature and keeps the sub operating at a safe operating temperature when pumping out high amounts of SPL. Add some bumps in your trunk and enhance your cars stereo system with this Power Series Subwoofer.

 
Rockford Fosgate Swift Terminals

SWIFT: Selectable Woofer Impedance Fused Termination

Making installation faster and easier, Rockford Fosgate developed SWIFT terminals. This system allows the nominal impedance of voice coils to quickly be configured in a Series or Parallel wiring configuration. Removing and inverting the center plug, a Series or Parallel wiring configuration is accomplished. The removable jumper also provides fused protection in severe overload conditions.

 
 IDHS Inductive Damping Heat Sink

IDHS: Inductive Damping Heat Sink

By securing the Inductive Dampening Heat Sink (IDHS) to the top of the magnet structure, Rockford Fosgate is able to improve the efficiency of their drivers. This is accomplished by reducing the amount of distortion and back Electro-Magnetic Force (EMF). The IDHS also radiates heat to reduce the temperature in the voice coil.

 
Anodized Aluminum Voice Coil Former

Anodized Aluminum Voice Coil Former

By using an anodized aluminum voice coil former on their subwoofers, Rockford Fosgate is able to dissipate heat from the voice coil more efficiently. A hot voice coil can melt the adhesive bonds, which will lead to eventual subwoofer failure. The aluminum voice coil former acts as a heat-sink to dissipate thermal build-up on the voice coil cool during high SPL conditions.

 
CEA-2031 Rockford Fosgate Subwoofers

Conforms to CEA-2031

Rockford Fosgate has built this subwoofer to conform to the CEA-2031 loudspeaker power handling industry standards. This means that you can trust the subwoofer to have the capacity to safely handle the continuous (RMS) power rating. Having a CEA-2031 power handling is important when matching a subwoofer to an amplifier because the power ratings are accurate.

 
Rockford Fosgate Stitched Tinsel Leads

Stitched Tinsel Leads

To improve the reliability and performance by reducing fatigue and possible shorting, Rockford Fosgate has stitched the tinsel leads to the spider. The multipoint periodic stitching lead wires reduce the mass of the tinsel leads to spread the stress over a greater area. This improves the reliability and performance of the subwoofer.

 
Rockford Fosgate VAST Surround

VAST: Vertical Attach Surround Technique

In order to increase the surface area of the cone without causing any installation issues, Rockford Fosgate designed the Vertical Attach Surround Technique (VAST). By redesigning the manner in which the surround adheres to the basket, these speakers gain up to 25% more effective radiating cone area. This improves the nominal efficiency and maximum output.

 
Product Features
  • 15" Dual 4 Ohm Power Series Subwoofer
  • Power Handling:
    • Peak: 2000 watts
    • RMS: 1000 watts
  • Impedance: Dual 4 Ohm
  • Kevlar fiber reinforced semi pressed paper cone for stability and durability
  • High durability VAST Santoprene rubber surround for increased excursion and 25% more cone area
  • Anodized aluminum voice coil former provide enhanced heat dissipation that keeps the subwoofer at a safe operating temperature
  • Hard anodized aluminum dust cap
  • Tear and fatigue resistant poly cotton spider equipped with stitched balanced tinsel leads that improve reliability and performance
  • Optimized motor magnetics with extended vented pole piece and bumped backplate
  • IDHS (Inductive Damping Heat Sink) helps radiate heat to reduce the voice coil temperature
  • SWIFT terminals provide built-in fusing for protection of from voltage transients and allows nominal impedance of voice coils to easily be wired in a series or parallel configuration
  • Rigid die-cast aluminum basket for strong construction
  • Metal mesh grille included for added protection
  • Double stacked Ferrite magnet structure
  • Proprietary spider cooling vents
  • Multi-point high temp/high strength neck joint bonding technique for added durability
  • Removable and reversible screw concealing ring
  • 3" High-temp voice coil with spun-laced Nomex re-inforcement collar
  • Xmax: 16.4mm
  • Mounting Diameter: 13-7/8"
  • Mounting Depth: 8-3/8"
  • SPL: 88 dB
  • 1-year Manufacturer's warranty

Product History:

Rockford Fosgate T1D415 thumbnail
(newest, current model)
Rockford Fosgate T115D4 thumbnail
(previous model, replaced by Rockford Fosgate T1D415)
Subwoofer Specifications
Subwoofer Series Power T1
Subwoofer Size 15"
Peak Power Handling 2000 watts
RMS Power Handling 1000 watts
Voice Coil(s) Dual
Impedance (Per Voice Coil) 4 ohms
Voice Coil Diameter 3"
Frequency Response Not specified by manufacturer
Sensitivity 88 dB
Xmax (millimeters) 16.4 mm
Subwoofer Design Round / Circle
Main Cone Color Black
Woofer Composition Kevlar Reinforced Pulp (Paper)
Woofer Surround Santoprene Rubber
Magnet Structure Double Stacked
Subwoofer Grille Yes - Included
Re-Cone Kit Available No
Recommended Enclosure Specifications
Recommended Enclosure Type Ported / Vented
Minimum Sealed Box Volume Not Specified by Manufacturer
Maximum Sealed Box Volume Not Specified by Manufacturer
Minimum Ported Box Volume 2.66 cubic feet
Maximum Ported Box Volume 3.25 cubic feet
Top-Mount Depth 8-3/8"
Cutout Diameter 13-7/8"
Shallow Mount Installation No
Electromechanical Parameters
Free-Air Resonance (Fs) 27.00 Hz
Equivalent Compliance (Vas) 102 liters
Total Speaker Q Value (Qts) 0.51
Warranty and Return Policy
Return Policy Standard Return Policy
Parts Warranty Duration 1 year
Labor Warranty Duration 1 year
Warranty Provider Sonic Electronix
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Speaker Wire
Choose from our recommended speaker wire to hook up your amplifier to your new subwoofer. The higher quality of speaker wire that it used for this connection, the better your subwoofer will sound.
  Product Price Add?
15 ft. of 12 AWG StreetWires Speaker Wire 15 ft. of 12 AWG StreetWires Speaker Wire
This SuperCable from StreetWires is a noise free link between your amplifier and your subwoofer.
$24.99
20 ft. of 12 AWG Kicker Speaker Wire 20 ft. of 12 AWG Kicker Speaker Wire
Kicker uses twisted pair technology and hyper-flex cable to provide you with the cleanest sound and a simple installation.
$39.95
Sound Dampening Material
Get the most sound out of your new subwoofer with some high quality sound dampening material. It will keep the road noise out and the music inside the car.
  Product Price Add?
Dynamat Rubber Roller Dynamat Rubber Roller
Install your Dynamat with ease! This heavy duty rubber roller is designed specifically to install your Dynamat!
$18.99
Dynamat Extreme Bulk Pack Dynamat Extreme Bulk Pack
36 ft. Dynamat Xtreme Bulk Pack enhances the sound for your entire car!
$159.99
Bass Reconstruction Processors
These sound processors are perfect for enhancing the lower frequencies of a car audio system. After some installation and tuning, your new system will sound better than ever!
  Product Price Add?
The Epicenter by AudioControl (Gray) The Epicenter by AudioControl (Gray)
The original bass booster expander with included remote will enhance the bass of your new system.
$159.99
Enclosure Accessories
These accessories are designed to help you build the custom enclosure that you have always wanted, or add to the box that you already bought. Either way, these products can assist you in achieving better sound, better looks, and more bass!
  Product Price Add?
20 oz. Bag of Poly-Fil 20 oz. Bag of Poly-Fil
Polyester fiber fiberfill adds better bass to your system.
$5.99
16 oz. Can of Adhesive Spray 16 oz. Can of Adhesive Spray
Spray adhesive used for adhering carpet to subwoofer boxes without bubbles.
$5.99
Binding Post Terminal Cup Binding Post Terminal Cup
Use this to easily install a binding post terminal to your subwoofer enclosure.
$4.99
Banana Clip Terminals Banana Clip Terminals
These high grade banana clips allow you to plug into your banana clip ready terminal for a secure connection.
$4.99
Installation, Tools & Accessories
Don't forget to get the tools and accessories that will help you install your new subwoofer in your vehicle. Whether you opt for the professional installation card or the do-it-yourself method, you will need the following to help you out!
  Product Price Add?
Car Stereo and Speaker / Subwoofer Installation Tool Kit Car Stereo and Speaker / Subwoofer Installation Tool Kit
Includes Test Light, Crimp/Splice Tool, Multi-bit Screwdriver and more.
$14.99
System Optimization and Tuning
Use these items to assist in testing and tuning your new car audio system to perfection!
  Product Price Add?
Scosche SPL Meter Scosche SPL Meter
Monitor the noise level of your new car audio system with this SPL meter measuring from 60-135 dB.
$24.99
AutoSound 2000 CD-102 AutoSound 2000 CD-102
High frequency test CD specifically designed for the set-up and evaluation of sound system imaging and placement.
$12.99
AutoSound 2000 CD-103 AutoSound 2000 CD-103
Audiophile reference series test disc for evaluation of all audio components.
$12.99
Main Product
  Product Price Add?
Rockford Fosgate T1D415 Rockford Fosgate T1D415 $329.99

For more information on wiring subwoofers, visit our Subwoofer Wiring Guide: Subwoofer Wiring Guide

Product Summary

Manufacturer: Rockford Fosgate
Model number: T1D415
UPC: 780687328962
Weight: 53.60 lbs
Internal SKU: t1d415
Internal product ID: 34765