Rockford Fosgate Power T115D4

Subwoofer Specifications

Warranty and Return Policy

5 people rated the Rockford Fosgate Power T115D4 and gave it an average rating of 4.2 out of 5

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Review written by Bonez :) Hiya Haterz!!! LMFAO from HELL-ena, MT lol

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.

Review written by tommylee from el paso, TX

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!!!!!!

Review written by Gene from Enfield, ct

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..

Review written by ryan from wasilla, AK

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.

Review written by Michael from Jonesboro, AR

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.