Name: Rockford Fosgate Power T1 T1D415
Brand: Rockford Fosgate
SKU: t1d415
Price: 849.99 USD
Availability: LimitedAvailability
Rating: 4.8750 (8 reviews)

Description

Authorized dealer

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.

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

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

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.

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.

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.

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 Details:

15" Dual 4 ohm Power Series Subwoofer
Power Handling:

Peak: 2000 watts
RMS: 1000 watts

Kevlar Reinforced Pulp Paper Cone
Santoprene Rubber Surround
Symmetrical dual progressive roll tear resistant poly-cotton spiders
Periodic-stitched fatigue resistant tinsel lead wire
Optimized and matched magnetic and compliance geometry
Proprietary 8 AWG insulated all metal input spring terminal connection
Rigid die-cast aluminum basket
Anodized aluminum heat sinking dust cap
Spun-laced Nomex re-enforcement collar
Optimized pole piece and spider venting
3" High Temperature Aluminum Voice coil
16.4 mm Xmax
Double Stacked Ferrite magnet motor structure
Frequency Response: 25 - 500 Hz
Resonance Frequency (Fs): 27.00 Hz
Sensitivity: 87.5 dB
Recommended sealed box volume: 2.25 cubic feet
Recommended ported box volume: 2.66 cubic feet
Top-mount depth: 8.39"
Cutout diameter: 13.9375"
CTA-2031 Compliant
Authorized Internet Dealer
Includes protective subwoofer grille
1-year Manufacturer's Warranty

Priced Individually

Rockford Fosgate T1D415 owner’s manual

Product history:

	Rockford Fosgate Power T1 T1D415 (newest, current model)
	Rockford Fosgate Power T115D4 (previous model, replaced by Rockford Fosgate Power T1 T1D415)

Subwoofer Wiring Guide

Wiring Guide to Wire 1 Rockford Fosgate Power T1 T1D415 Subwoofer

Mono Amp

2 Channel Amp - Bridged

Wiring Guide to Wire 2 Rockford Fosgate Power T1 T1D415 Subwoofers

Mono Amp

Mono Amp - Option 1

2 Channel Amp

2 Channel Amp - Bridged

4 Channel Amp - Bridged

Wiring Guide to Wire 3 Rockford Fosgate Power T1 T1D415 Subwoofers

Mono Amp

4 Channel Amp

Wiring Guide to Wire 4 Rockford Fosgate Power T1 T1D415 Subwoofers

Mono Amp

2 Channel Amp

2 Channel Amp - Bridged

4 Channel Amp

Specifications & Details

Subwoofer Specifications

Series

Power Series

Subwoofer Size

15"

Peak Power Handling

2000 watts

RMS Power Handling

1000 watts

Voice Coil(s)

Dual

Impedance (Per Voice Coil)

4 ohm

Voice Coil Material

Aluminum

Voice Coil Diameter

Frequency Response

25 - 500 Hz

Sensitivity

87.5 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

Magnet Type

Ferrite

Subwoofer Grille

Yes - Included

CTA-2031 Compliant

Yes

Recommended Enclosure Specifications

Recommended Enclosure Type

Ported / Vented
Sealed

Optimum Sealed Box Volume

2.25 cubic feet

Optimum Ported Box Volume

2.66 cubic feet

Top-Mount Depth (Mounting Depth)

8.39"

Cutout Diameter

13.9375"

Shallow Mount Installation

T/S Parameters (Electromechanical)

Free-Air Resonance (Fs)

27.00 Hz

Equivalent Compliance (Vas)

102 liters

Total Speaker Q Value (Qts)

0.51

Electrical Q Value (Qes)

0.55

Electrical Resistance of Voice Coil (Re)

6.5 ohm

Mechanical Q Value (Qms)

6.00

What is in the box?

Paperwork

User manual
Quick start guide

WITB: Subwoofers

Subwoofer
Grille (attached)

Warranty and Return Policy

Parts Warranty Duration

1 year

Labor Warranty Duration

1 year

Warranty Provider

Manufacturer

Customer Ratings & Reviews

Rockford Fosgate Power T1 T1D415 thumbnail image

Overall rating distribution

5 star		88%
4 star		13%
3 star		0%
2 star		0%
1 star		0%

Filter by Star Rating

Show only Verified Purchases

By feature average rating

Durability		4.9
Value		4.8
Features		5
Design		4.9
Usability		5

Customer Photos & Videos

Customer Reviews

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T1D415

The T1 sub delivers on such an amazing level that I can't put what I want to say into words. So I will keep this short as possible. If you want to have outstanding bass with high spl this is your sub. On the other hand, if you want sound quality then this sub will also please just about any audiophile. Just remember, if you want spl go ported, and if you want sound quality go with a sealed box. Like I said from the start, the T1 sub DELIVERS.

By Snake on October 20, 2014

64 found this helpful

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Good old Fosgate Power!

Installed this sub in my friends 98 Grand Prix in a custom box and so far it has managed to break his trunk latch and shake his rear spoiler loose. It's also very durable, getting fed 1000 watts daily on music and it hasn't had a single problem to date. Overall a very solid woofer.

By Austin on April 12, 2014

57 found this helpful

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T1D4-15

I have two of these on a T1500-1 bd amp and they perform better
than any sub I have had in my Nissan Versa hatchback.
If you have the funds, I'd say buy this sub knowing that it
is money well spent.
P.S. I love the ability to switch between 2 or 8 ohms with just the
flip of a plug, and best of all only one pos and neg hook-up.

By Donnie on November 24, 2014

52 found this helpful

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Low rumble

For the first time, I am at a loss for words, from the moment you pick this sub up you will notice what a real sub feels like. There is nothing negative I could say, no bad comment, and no regrets. I listened to several songs, and no matter what type they sounded great. I have two in a ported box in a Nissan Versa hatchback. They are driven by a RF T-1000-1 constant power amp. If you can, get them and have no regrets.

By southpaw on December 9, 2013

53 found this helpful

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Updated Review

I had two of these on a Rockford T 1000-1bdcp and thought that was great, but then I put a Rockford T 1500-1bdcp on these subs and they took the word bass to a whole new meaning. These subs made everything in my Nissan Verse hatchback shake. The T 1000-1 amp is great, but it had these subs under powered. The tech at Sonic was correct, these subs on a Rockford T 1500-1bdcp is wicked strong. I highly suggest you get one or two if you can fit them in your ride.

By Southpaw on July 10, 2014

49 found this helpful

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T1D415

Awesome sub. Hits hard! Highly recommended. I have one and it's louder than my friends two kickers.

By Jake on November 1, 2013

45 found this helpful

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By Russell on April 3, 2026 Checkmark Icon

Verified purchase

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Massive in size, massive in bass.

This speaker the t1d415, is all about bass and how tight it is. It is a must to use it with other Rockford Fosgate speakers for total annihilation. Two of these 15" pro subwoofers will squeeze you with all the sound they produce. I will tell you the price is great for what you get! ????

By Mark on December 12, 2024 Checkmark Icon

Verified purchase

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