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Rockford Fosgate Power T115D4

15" Power Stage 1 Dual 4 ohm Subwoofer

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15" Power Stage 1 Subwoofer • aluminum parabolic woofer cone • rubber surround • Dual Cast Aluminum Basket with spider venting • Peak Power: 1,200 watts • RMS: 600 watts

Learn more about the t115d4

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Product Highlights


15" Power Stage 1 Subwoofer • aluminum parabolic woofer cone • rubber surround • Dual Cast Aluminum Basket with spider venting • Peak Power: 1,200 watts • RMS: 600 watts

Description


Rockford Fosgate brand icon

Authorized dealer

  • 15" Power Stage 1 Series Subwoofer
  • Power Handling:
    • Peak: 1200 watts
    • RMS: 600 watts
  • Aluminum parabolic cone woofer
  • Thermoplastic rubber surround
  • Dual cast aluminum basket with spider venting
  • Dual 4-ohm voice coils
  • Double stacked magnet motor assembly
  • 1-year SonicElectronix.com warranty

Product history:

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

Subwoofer Wiring Guide


Wiring Guide to Wire 1 Rockford Fosgate Power T115D4 Subwoofer

Mono Amp

2 Channel Amp - Bridged

Wiring Guide to Wire 2 Rockford Fosgate Power T115D4 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 T115D4 Subwoofers

Mono Amp

4 Channel Amp

Wiring Guide to Wire 4 Rockford Fosgate Power T115D4 Subwoofers

Mono Amp

2 Channel Amp

2 Channel Amp - Bridged

4 Channel Amp


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Specifications & Details


Subwoofer Specifications
Subwoofer Size
15"
Peak Power Handling
1200 watts
RMS Power Handling
600 watts
Voice Coil(s)
Dual
Impedance (Per Voice Coil)
4 ohm
Frequency Response
28 - 200 Hz
Sensitivity
88 dB
Xmax (millimeters)
14 mm
Subwoofer Design
Round / Circle
Main Cone Color
Silver
Woofer Composition
Aluminum
Woofer Surround
Rubber
Subwoofer Grille
No
Re-Cone Kit Available
No
Recommended Enclosure Specifications
Recommended Enclosure Type
Ported / Vented
Sealed
Minimum Sealed Box Volume
2.25 cubic feet
Maximum Sealed Box Volume
2.25 cubic feet
Minimum Ported Box Volume
2.75 cubic feet
Maximum Ported Box Volume
2.75 cubic feet
Top-Mount Depth (Mounting Depth)
8-3/8"
Cutout Diameter
13-13/16"
Shallow Mount Installation
No
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Sonic Electronix

Item Details


Manufacturer:

Model Number:

T115D4

Weight:

46.00lbs

Internal SKU:

t115d4

Internal Product ID:

7837

Product and How-to Videos


  • 3Sixty3 Aftermarket Setup Wizard Tutorial
  • Car Subwoofer Size Buying Guide | What Size of Sub Should I Get?

Customer Ratings & Reviews


Rockford Fosgate Power T115D4 thumbnail image

5 star
57%
4 star
29%
3 star
14%
2 star
0%
1 star
0%



Durability
4.2
Value
4
Features
4.5
Design
4.7
Usability
4.6

Customer Reviews

Sort by:

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Good Sub!

Awesome second best sub(as far as the RF line goes). Seems to handle more more RMS power than it is rated at. Sounds really good and clean. Hits all the lows very well. Shakes the entire car with the right enclosure. Very impressed, would like to get a hold of a T2 after hearing this one. Kind of pricy though.

By ryan on September 9, 2008

25 found this helpful


Good sub

My buddy has one of these hooked up in his Cherokee and it sounds really good hits lows really good but I personally like 12's...my type x destroys his system...its a pricey sub..i would save a little more a buy the t2's if anything or the orion hcaa's those are intense...i think the type r 15 slams better than this sub and its cheaper..but i always like rockford products because they are durable..ive blown type r's and type s's before...but my p3 always stood up...the t1 is a good sub..

By Gene on February 7, 2009

21 found this helpful


awesome sub.. clean and loud

All the stores around here had this sub selling for 350-400 dollars. 270 dollars shipped on here, best deal i could find by far.

right now i got it hooked up to a 1000 watt Sony amp that i had sitting around. Its so clean! i was real impressed with how clean it sounds. the amp is crappy and under powering it, but i can imagine how good and loud it will sound when i get a better amp, cause it sounds pretty good with this one. looks pretty bad a** too.

only negative thing i could say about it is how easy it is to dent the aluminum cone. i have a tiny dent in mine already from who knows what, and no idea how it got there.

By colton on March 11, 2010

20 found this helpful


Finally committed to a sub!

After many sizes, shapes, wattages, and brands of subs, I finally found a subwoofer that I can commit to. I have one in a 4 cubic ft, L ported Bass Rocker box. And wow does this slam. I was running it with an Alpine MRP-M500 and it's loud. Do not over power his sub, and give it room to breathe. I am picking up another one and will run 2 of them in a custom 8 cubic ft chambered and l ported box with a HiFonics 1000 watt 2 channel amp. I have this setup in a 2002 Mitsubishi Lancer OZ Rally.

By Rum Runner on May 18, 2013

18 found this helpful


Decent...could find better.

I've been installing/researching car audio for 15 years and Rockford has been a big part of my experiences. I had alot of expectations for this sub as was only semi-impressed. I've had two inverted in my SUV with a RF T-2000bd for power. Pretty sweet. But I wanted to be louder, of course, since I was a spl competitor. So I went to four in a ported box right behind the front seats in my SUV. Power was coming from two T-2000bd's this time. Let me tell you what...After fixing the shoddy and incorrect wiring job of one of my so called "friends", they didn't sound too bad. Was actually at times fairly loud. But NOT for the price you pay. NOT for the amount of wattage I had. Why, you ask? ENCLOSURE DESIGN. I would name names as to who built not one, but...three? four? HORRENDOUS boxes for me. They would probably have done much better with a different enclosure. However, as far as price vs. performance goes, they are blowing smoke up your ***. I've built louder systems with subs that cost less than half as much as the T1s or T2s. The key? Enclosure design. Research. Resonant frequency of your vehicle. Little bit of science...not grab the biggest most expensive thing you can find and put excessive amounts of power to it. I will admit, one of my ex-friends is doing well with a single T2 at comps right now. And it sounds decent. But I'm afraid of hinting to him that there are guys in other states running a single 10", let alone a 15" putting up BETTER numbers than him. Do your research and don't buy whats "FED" to you by monstrous car audio companies.

You guys at Sonic have some great prices. I'll prob be making a purchase in the near future.

Sorry for the long review but when I see a chance to express the truth I do it.

By Bonez :) Hiya Haterz!!! LMFAO on July 12, 2009

18 found this helpful


t1's

these are some awsome subs and i got them at a real good price. at the audio stores here they were trying to rip me off big time. but this is not for the weak at heart. slamming the beats hard and thats what you guys helped me do at an affordable price. keep up the good prices!!!!!!

By tommylee on June 19, 2009

17 found this helpful


The Package

This sub hit really hard its the little brother of the t2 buut not small in sound. U put this sub on at least 800 watts(100-600) and it will hit. I had one in a 190e benz hooked up to a pioneer face and a fosgate amp. Great deal on this site.

By Michael on September 15, 2006

17 found this helpful




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