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Rockford Fosgate T2D215

1200W 15" Power T2 Series Dual 2 ohm Subwoofer

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Too Much Power To Handle

The T2D215 Power Series 15" Subwoofer by Rockford Fosgate has a peak power rating of 2400 watts and a RMS rating of 1200 watts. With this much power you can rest assure that you will be the envy of your block, as you stroll down your street with some car rattling bass. Constructed with a hard anodized cone and dust cap for strength and durability the Power Series subs will keep going now matter how long your listening sessions last. Also equipped with Inductive Damping Heat Sink, that 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. If you are looking to take your car audio system to the next level, the T2D215 will not only overwhelm you but simply blow you away.

 
Aluminum Dust Cap Cone

Aluminum Dust Cap & Cone

To increase the strength, weight, and thermal capacity of the subwoofer, a hard anodized cone and dust cap has been used. A Parabolic triangular cone support is used to reduce piston flex and cone distortion. The result is excellent heat transfer, reduced distortion, higher power handling, and a better sounding subwoofer!

 
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.

 
Rockford Fosgate inverted mounting

Reverse Mounting Compatible

The removable trim ring can be installed in the front or back side of the subwoofer. This enables the subwoofer to be mounted in either direction. No matter which way you install the subwoofer, it will still look great with a cosmetically finished look. Inverted mounting of the sub shows off the large magnet structure of this giant subwoofer.

 
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.

 

General Features:

  • 15" Dual 2 ohm T2 Power Series Subwoofer
  • Power Handling:
    • Peak: 2400 watts
    • RMS: 1200 watts
  • Impedance: Dual 2 ohm
  • Hard anodized aluminum dustcap and cone
  • High excursion Thermo-Rubber Santoprene surround
  • Mirror image symmetrical tear and fatigue resistant poly cotton spider
  • Parabolic triangular cone geometry support system
  • Precision cast and vented aluminum alloy basket and rigid frame
  • Optimized motor magnetics with extended vented pole and bumped backplate
  • Die-cast motor case and heatsink
  • Removable and reversible screw concealing ring
  • Ultra-high temp anodized aluminum voice coil and former
  • Fatigue resistant and reduced strain "stitched on" flexible lead wire design
  • Multi-point high-temp/high-strength neck joint bonding technique
  • Spun-laced Nomex insulating reinforcement collar
  • (IDHS) Inductive Damping Heat Sink
  • Custom insulated/isolated compression input terminal assembly
  • Flat edge wound copper clad aluminum wire
  • Triple stacked ferrite magnet structure
  • Sensitivity: 86.0 dB
  • CEA-2031 Compliant
  • 1-year SonicElectronix.com warranty
Package Includes:
  • Power DVC Subwoofer
  • Trim Ring
  • 4 Socket Head Trim Ring Screws
  • 8 Socket Head Wood Screws
  • Socket Head Driver Bit
  • Installation and Operation Manual

Product History:

Rockford Fosgate T2D215 thumbnail
(newest, current model)
Rockford Fosgate T215D2 thumbnail
(previous model, replaced by Rockford Fosgate T2D215)

Subwoofer Specifications

Subwoofer Series
Each subwoofer manufactured is part of a series. This is the name of the subwoofer's series.
Power T2 (Rockford Fosgate)
Subwoofer Size
Refers to the diameter of the subwoofer, measured in inches.
15"
Peak Power Handling
Peak power handling refers to the amount of power a speaker can handle during a brief musical burst. The RMS power range figure is a much more reliable rating for determining the speaker's power requirements. The Peak power handling specification is typically rated per speaker unless otherwise noted.
2400 watts
RMS Power Handling
The RMS power is the amount of power the speaker requires to operate safely and properly. RMS Power Handling refers to the amount of power a speaker can handle on a continuous basis. We recommend powering your speakers or subwoofer with 80%-120% of its recommended RMS rating. The RMS power handling specification is typically rated per speaker unless otherwise noted.
1200 watts
Voice Coil(s)
Dual voice coil subs have more wiring flexibility than single voice coils subs; however, single voice coil subwoofers provide easier hookup options for wiring multiple subwoofers in parallel or series. You may also run a dual voice coil (DVC) sub in parallel, series, or combination. A quad voice coil has four voice coils and is equal to two dual voice coil subwoofers as far as wiring goes.
Dual
Impedance (Per Voice Coil)
The load value (in ohms) that the speakers present to the amplifier per voice coil - the amount of resistance to the current flow. This is a key specification as subs wired in parallel or low impedances can create problems with your amplifier and potentially void all warranties. We encourage you to ask our support department prior to purchase if you do not understand which impedance level will suit your application best.
2 ohms
Voice Coil Diameter
Diameter of voice coil, usually measured in inches.
4"
Sensitivity
An efficiency or sensitivity rating tells you how effectively a speaker converts power into sound. The higher the number, the more efficient the speaker and the louder it will play with the same input power. An efficient speaker helps you maximize your available power. Most sensitivity ratings measure the speaker's output with 1 watt of input, 1 meter from the speaker. Some speakers' sensitivity is measured with 2.83 volts of input, instead of 1 watt.
 
Efficiency (1w/1m) is not an accurate indicator of a subwoofer's output capability and should not be used as a comparison to other speakers or subwoofers to determine which one is "louder".
86.0 dB
Xmax (millimeters)
Typically measured in millimeters, the Xmax value is the measure of a speaker cone's maximum excursion in one direction while maintaining a linear behavior.
19 mm
Subwoofer Design
This is the design of the subwoofer or the opening of the subwoofer enclosure. Each design has it's own benefits, whether it is a square, circle, or oval.

Round/Circle: This is the typical and common subwoofer design. They have a round cone and are a circle in design.

Square: These woofers are able to achieve a greater cone area in a smaller space. Because of the greater surface area, some square subwoofers will be louder than a round subwoofer of the same size.

Round / Circle
Main Cone Color
This is the color of the speaker's or subwoofer's cone.
Black
Woofer Composition
Lightweight woofer cone materials are essential for efficient operation. Poly cones produce exceptional sound and are sturdy against various changes in temperature. Paper cones are very efficient, and when treated for moisture resistance, will perform at a high level. Poly refers to polypropylene, which is thermoplastic or fibers that are polymers of propylene. IMPP refers to injection molded polypropylene, a commonly used process and material in speakers.
Anodized Aluminum
Woofer Surround
A speakers surround is part of the suspension system. The surround protects the cone and prevents it from being displaced as it flexes out from the basket. It is usually made of a durable material like treated foam or rubber in order to withstand the strenuous job of producing bass frequencies.
Thermo-Rubber
Magnet Structure
Defines the overall structure of the subwoofers magnet.
Triple Stacked
Subwoofer Grille
Most subwoofers are able to accommodate a universal grille; however, some subs include a grille and others have a specific, optional grille available for purchase separately. If "yes", then the subwoofer includes a grille. If "optional (sold separately)" the matching grille will need to be purchased in addition to the sub.
No
Re-Cone Kit Available
Some higher end subwoofers have replaceable cone assemblies. In case of a blown woofer, a recone kit allows for a simple replacement, as opposed to purchasing an entire new subwoofer.
No

Recommended Enclosure Specifications

Recommended Enclosure Type
This is the recommended type of enclosure that the subwoofer should be installed into. Some subwoofers are specially designed for particular enclosures.

Sealed: These enclosures completely enclose the air inside the box. These boxes produce a tight bass.

Ported/Vented: These enclosures have a slot of air to escape from the box. The result is a sound that has more "boom".

Bandpass: These are a combination of both sealed and ported enclosures. They can be very efficient, but require tuning for the best response.

Ported / Vented
Optimum Sealed Box Volume
This value indicates the ideal sealed box volume that the manufacturer recommends for the subwoofer. The volume is typically displayed in cubic feet.
Minimum Ported Box Volume
This value indicates the minimum ported box volume that the manufacturer recommends for the subwoofer. The volume is typically displayed in cubic feet.
2.75 cubic feet
Optimum Ported Box Volume
This value indicates the ideal ported box volume that the manufacturer recommends for the subwoofer. The volume is typically displayed in cubic feet.
Maximum Ported Box Volume
This value indicates the maximum ported box volume that the manufacturer recommends for the subwoofer. The volume is typically displayed in cubic feet.
3.25 cubic feet
Top-Mount Depth
The depth when installed on top of the mounting surface. Measured from the bottom of the speaker's magnet to the bottom of the mounting holes on the rim of the speaker.
9-7/8"
Cutout Diameter
The actual diameter of the hole you will need to cut out if you are creating a new mounting location for this speaker, or if you are mounting a subwoofer in a box.
13-13/16"
Shallow Mount Installation
This means that the subwoofer/speaker is designed to be installed in areas that do not have a lot of space. Shallow mount subwoofers are typically found under a seat or behind the seat in some trucks.

Shallow mount speakers will typically have a mounting depth of 2" or less, while shallow mount subwoofers will typically have a mounting depth of 3" or less.

No

Electromechanical Parameters

Free-Air Resonance (Fs)
The free-air resonance frequency of the subwoofer, measured in Hz. At this frequency the weight of the moving parts is perfectly balanced with the subwoofers suspension system.
31 Hz
Equivalent Compliance (Vas)
This is the amount of air that has the same stiffness as the subwoofers suspension. The greater the rating, the lower the stiffness and larger recommended enclosure. It is measured in Liters.
48.4 liters
Total Speaker Q Value (Qts)
This is the subwoofers relative damping (Q) at the resonance frequency (Fs), including all dimensionless losses. Essentially, a high Qts value (closer to 1.0) means the subwoofer is great for sealed enclosures and a low Qts value (closer to 0) means the woofer is great in vented enclosures. A Qts of around 0.45 means the woofer will work decently in either enclosure type.
0.52
Electrical Q Value (Qes)
The subwoofers relative damping (Q) at the resonance frequency (Fs), including electrical losses. Also called the mechanical damping of the subwoofer. The unitless measurement usually varies from 0.5 10.
0.58
Electrical Resistance of Voice Coil (Re)
Amount of DC resistance of the subwoofer when measured with an ohm meter. Typically, this will read less than the impedance rating of the subwoofer.
3.4 ohms
Mechanical Q Value (Qms)
This is the subwoofers relative damping (Q) at the resonance frequency (Fs), including mechanical losses. Also called the mechanical damping of the subwoofer. This unitless measurement usually varies from 0.5 10.
5.29
Efficiency Bandwidth Product (EBP)
This number represents the trade off between having an efficient woofer and one with a wide bandwidth. To calculate this number, take the Fs and divide it by the Qes. If the number is below 50, the woofer is designed for a sealed enclosure only. If it's between 50-100 it can be used in either. Lastly, if it's greater than 100 it's designed for vented enclosures.

Specials with this Item

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Warranty and Return Policy

Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Sonic Electronix

Summary of Customer Ratings & Reviews

Rating Distribution

5 Star
87%
4 Star
7%
3 Star
7%
2 Star
0%
1 Star
0%

Average Attribution Rating

Durability
4.9
Value
4.6
Features
4.9
Design
4.9
Usability
5.0

Bass Man

Louisiana

Overall
Durability
Value
Features
Design
Usability

Great Sub

September 4, 2010

I have this sub in my Nissan Maxima in a large ABC enclosure and it sounds amazing. Its power by the Rockford Power 1000bd and i have 6.5 Rockford punch components and its the best sound quality i have ever had. i have had Pioneer Kicker and Rockford and the sound quality is the best yet. This sub has very smooth deep rich bass and handles the power and begs for more. Highly recommended

4 of 4 found this helpful

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Jeremy

paradis, LA

Overall
Durability
Value
Features
Design
Usability

Awsome!!

February 9, 2011

See those people that say o this is an ok thing but these are better. Ok well u also gotta think about the ppl that are tight on money stupid. This sub is amazing great lows highs and mids and sound clarity is great. The price, unbeatable. All I gotta say is u gotta get this sub. If u like loud Awsome sounding bass. Gotta love em

2 of 2 found this helpful

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basstech

little rock, arkansas

Overall
Durability
Value
Features
Design
Usability

expensive but a quality product

September 17, 2013

Even though made in china the quality of the product has not been compromised. I have been a rockford owner for the past 20 years and still am. Enough said.

0 of 0 found this helpful

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TimSeiko

Canada

Overall
Durability
Value
Features
Design
Usability

Rockford Fosgate Dual 15"

September 17, 2013

I have been through a few subs now and all I have to say about the Rockford Fosgate Dual 15" Sub is ... Wow! It's tough with clear sound at high gain.

0 of 0 found this helpful

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Trent

Northwood, OH

Overall
Durability
Value
Features
Design
Usability

T2D215

March 25, 2013

I've had many subs and this is by far the best. Its 1200 watt rms is underrated, im putting clean 1400-1600 watts all day with the right box it can handle that. specs are around 3 cubs im running a 5 cube box tuned to 35 and it hits the lows like crazy and still has highs. Awesome subs Rockford again on top. Not to mention that it beats all other subs with having the biggest voice coil of 4".

0 of 0 found this helpful

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Jowally

Huntingdon, tn

Overall
Durability
Value
Features
Design
Usability

Wow its amazing!!7

April 24, 2012

This speaker paired with the rockford fosgate 2500 watt amp is killer I only have the one 15 and it sounds so bad ass!

0 of 0 found this helpful

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Tristin

Cordova, TN

Overall
Durability
Value
Features
Design
Usability

bang for your ass!

February 15, 2012

These bang!!! Got two in a custom box tuned @40 hz. Beating down the block!!

0 of 0 found this helpful

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bloody ears

panhandle, florida

Overall
Durability
Value
Features
Design
Usability

build it and they will come!

February 2, 2012

I built a ported box to 3.28 @37 hz and also hooked up from Sonic a new hifonics brutus 2400 @1 ohm then tuned system with o-scope, which i highly recommend because signals start clipping before you can hear it. I'm no expert by any means but if you see that funky square sine wave you wont want it going into you're investment. I've listened to a lot of the popular bass songs plus some and cant find one it doesnt sound amazing with, and for a single sub in a civic 2dr coupe you couldnt possibly need more bass. It hits deeper than a shiatsu massager. If you or anyone that has one with enough power you can agree. I had two 15s in a hatch that had broken multiple parts on my car and hit 139.8 in a competition and the single t2 15 is hands down a lot harder hitting and louder.

0 of 0 found this helpful

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kyle

Toccoa, GA

Overall
Durability
Value
Features
Design
Usability

this thing is a beast

November 25, 2011

I ordered one of this subs from Sonic Eletronix and I recived it two days early which was a plus for me. I just hooked it up and it is awesome im I just started breaking it in and even at quater power this thing makes my whole truck pound. I know the price may turn me people away cause money is tight but if money is not the issue U GOTTA BUY THIS SUB!!

0 of 0 found this helpful

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Merritt

Cape Girardeau, Mo

Overall
Durability
Value
Features
Design
Usability

Rockford T2D15

October 30, 2011

This sub is unbelieveable.... I know the price may seem scary to some people but if you are looking for loud crisp sound this is well worth it... I have this sub in an 01 Monte Carlo and it pounds... I highly recommend this sub to everyone out there.. I run 2000 watts to this beast and it is begging for more.. Can handle whatever you wanna throw at it!!

0 of 0 found this helpful

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pootie585

roc,ny

Overall
Durability
Value
Features
Design
Usability

awesome sub

October 13, 2011

I got one of these subs in my car in a custom box to specs in my altima and it just pounds. I'm running it off a mcd1100.1 and its taking that with no problem. Have owned plenty of subs from JL, Kicker, Orion, Memphis, Eclipse etc, and by far think this one sounds best.

0 of 0 found this helpful

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Alex

Florida

Overall
Durability
Value
Features
Design
Usability

The best sub i've owned

August 21, 2011

This T2 is a beast. I have 2 of them being pushed by a T40001bd and they are loving the power. I first had them in a sealed box and they sounded clean, clear and loud. Now in the process of building a ported box to unleash the full potential of the beasts. Sound quality is similar to a JL W7. I'm sure SPL output will increase in a ported box.

0 of 0 found this helpful

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josh

Bentonville, AR

Overall
Durability
Value
Features
Design
Usability

Dang!!!

August 12, 2011

this product is incredible. its clean, loud, and loud. im in the process of breaking this sub in so im not even at half power right now but i'll pull up to a stop light and some college kids will be in the car next to me and i'll turn on a song and their jaws just drop. They thought it was crazy. i was literally heard at least half a mile away. my car is a 1996 Pontiac Sunfire. so it bumps HARD in my car. cant wait to run it at RMS. if ur lookin for a 15" sub. thats clean and loud... look no further. this Rockford will blow u away.

0 of 0 found this helpful

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Tracie

Frankfort, IL

Overall
Durability
Value
Features
Design
Usability

Best sub for the price

June 16, 2011

Hands down the best sub I've ever owned. Everything is great with it. no complaints whatsoever. I would highly recommend this product for anyone looking for a 15".

0 of 0 found this helpful

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matt

xxx

Overall
Durability
Value
Features
Design
Usability

its ok

October 30, 2010

i had a pair of them..there ok the hit lows good that the only good part, and they can get loud in the right box..there not as loud as my r.e se`s..my ses are better in everyway..i like them i would buy another pair for the right price...

0 of 6 found this helpful

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Accessory Tools and Products

Accessories added

15 Dual Sealed Single Cab Truck Subwoofer Box

Durable 11/16" Medium Density Fiberboard (MDF) construction.

Your Price $89.95

Single 15" Sealed MDF Subwoofer Enclosure

15-inch Sealed Car Sub Box Made with 3/4" MDF and lined w/ Polyfil.

Your Price $44.99

NVX 20 ft. of True Spec 8 Gauge Speaker Wire

Flexible multi-strand cable bends and twists to meet your installation needs.

Your Price $49.99

25 ft. of Streetwires 12 Gauge Speaker Cable

You'll need speaker wire to hook up that new subwoofer!

Your Price $44.95

Belva 23 ft. of 12 Gauge Speaker Wire

Ultra-flexible PVC blended jacket for easy installation.

Your Price $14.99

40 Square Feet of Sound Dampening Material

Thicker than the competition, complete sound damping kit for entire vehicle! Use for trunk, doors, roof and floor.

Your Price $119.99

Dynamat Sound Dampening Bulk Kit

Did you know sound dampening will reduce those annoying rattles and even increase your SPL?

Your Price $159.95

Stinger Sound Dampening Bulk Kit

Stinger's Roadkill sound dampening series is sure to kill unwanted road noise and rattles! Enough sound dampening for the whole car!

Your Price $99.99

20 oz. Bag of Poly-Fil

Polyester fiber fiberfill adds better bass to your system.

Your Price $5.99

12 oz. Can of Adhesive Spray

Spray adhesive used for adhering carpet to subwoofer boxes without bubbles.

Your Price $6.99

Spring Post Terminal Cup

Makes adding a spring post terminal to an enclosure simple! Banana clip ready!

Your Price $3.99

Gold Plated Dual Terminal Banana Plug Connector

Enables an expandable, secure connection accepting up to 8 gauge wire.

Your Price $3.99

Car Stereo and Speaker Installation Tool Kit

Includes Test Light, Crimp/Splice Tool, Multi-bit Screwdriver and more.

Your Price $12.99

Cordless Multi-Functional Heat Tool Soldering Iron Kit

Continuous working lock allows you to work without holding down trigger.

Your Price $79.99

4 Ft of 1/4" Thick Black Heat Shrink Tubing

Provides abrasion resistance and added protection for your cables.

Your Price $3.99

2" Universal, Professional Heavy Duty Roller for Sound Damping/Dampening

Universal rubber roller to make it easy to install sound dampening.

Your Price $7.99

1mm All Purpose Solder

Solder is all purpose for use on most projects where solder is needed.

Your Price $8.99

15" Protective Waffle Metal Subwoofer Grille

Keep your subwoofer looking amazing while keeping it safe with its durable metal construction!

Your Price $6.99

Scosche SPL Meter

Monitor the noise level of your new car audio system with this SPL meter measuring from 60-135 dB.

Your Price $21.99

AutoSound 2000 CD-101

Low frequency test CD

Your Price $11.99

Impedance Meter / Signal Generator

Easy to locate tuning frequencies of passive radiators and ported enclosures

Your Price $299.99

1 Rockford Fosgate T2D215 Subwoofer

Mono Amp

Mono Amp - Option 1

2 Channel Amp - Bridged

2 Rockford Fosgate T2D215 Subwoofers

Mono Amp

2 Channel Amp

4 Channel Amp - Bridged

3 Rockford Fosgate T2D215 Subwoofers

Mono Amp

Mono Amp - Option 1

4 Channel Amp

4 Rockford Fosgate T2D215 Subwoofers

2 Channel Amp

4 Channel Amp

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Product Summary

Manufacturer

Model Number

T2D215

UPC

780687330538

Weight

63.00lbs

Internal SKU

t2d215

Internal Product ID

22593

Sonic Electronix Wiring Guide

Wiring Diagram Legend

Warning: The image depicted shows the resistance change when wiring multiple subwoofer terminals. Please refer to your subwoofer's owner's manual for the proper wiring of its terminals. Sonic Electronix, Inc. is not responsible for damage caused to your audio system or vehicle due to improper installation. Please call tech support at 1-877-289-7664 if you require additional assistance.

Product Name: Rockford Fosgate T2D215

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