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Rockford Fosgate RFK4D thumbnail image
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5 star
92%
4 star
8%
3 star
0%
2 star
0%
1 star
0%



Durability
5
Value
4.7
Features
4.9
Design
4.9
Usability
5

Customer Reviews

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THICK WIRE!!!!!!

This amp kit was my choice over the kicker dual amp kit, mainly because of the price difference. This wire is more than thick enough to run two amps and 100% copper! The only problem i had was the design of the fuse holder? it was weird? Thats just me. Great quality wire!

By cesar on September 9, 2011

75 found this helpful


Skeptic No More

I've been installing my own and friends auto systems for the past 20+ years. The joy of installing something from scratch and hearing the results instantly and for years can only be expressed as totally gratifying.

The RFK4D Amp Kit I purchased from Sonic Electronix not only arrived a day early, it was complete with everything I needed to install both of my Amps + a connection point for a Inverter I thought I'd never get to use.

Everything included is Top Shelf and has performed flawlessly from day 1.

I would purchase this product again without any concerns whatsoever.

By DLinzy on August 31, 2010

73 found this helpful


you get what you pay for

And in this case you get massive quality out of this kit. The wire was a true 4g and extremely flexible. The distribution blocks worked beautifully and are interchangeable to accept 0g inputs and 4g outs. The only thing I wasnt happy about was the rca cables, they were skimpy. Otherwise 5 stars

By Mike on March 15, 2011

70 found this helpful


great product with a name you can trust

Buying this product allows one to add and two amplifiers, of almost any size, to almost any vehicle with all the necessary equipment needed to install. includes fuse holder with fuse, heavy 4&8awg wire, and distribution blocks. Also RCA cables, speaker wire, and remote wire to finish it out. best quality all in one package product at a fair to unbeatable price with no disappointments I could find.

By quality sound king on December 6, 2010

70 found this helpful


GREAT PRODUCT

I bought this amp kit to install it in my 08 Silverado along with 2 MA audios and a 2000 watt audiophonics amp. overall it is a wonderful amp kit, really high standard wires and came with everything I needed to install it. now I'm looking to upgrade my amp to a rockford also. SONICELECTRONIX #1

By Carlos on August 31, 2010

69 found this helpful


Rockford Fosgate RFK4D

I bought this at $79.99 and was the best price anywhere. This kit usually runs $150. It was quick and easy to install with all parts and has been installed for about 5 months now. I highly recommend this kit.

By stanley on August 17, 2010

68 found this helpful


Perfect Amp Kit!

I have used rockford fosgate amp kits for the last three years and they have finaly started going back to better quality. The insulation is very flexable and still secure. The distribution blocks come with all the sizing adapters and are very easy to install. Everything comes preped ready to go no crimping, cutting, or installing the fuse needed!

By Chasten on January 3, 2008

67 found this helpful


Substantial Materials

I bought this product to use in a multi amp system. It is a very heavy package of parts. I did not even open the package. I took it to my installer and he used it to put in my 4 speakers, 2 amps, new head unit and sub-woofer.

By Twisty on July 19, 2011

65 found this helpful


great price!

Well done Sonic as usual, good price and fast shipping. True 4 gauage wire, solid distributor block, you cant find this much from any other brand.

By clean car & a subwoofer on January 30, 2012

64 found this helpful


Perfect 2 AMP Kit.

Near perfect 2 amp kit. Comes with everything you need and not a bunch of needless stuff. Would definitely reccommend!!!

By Shannon on May 17, 2011

64 found this helpful


nobody beats these guys is prices

A very simple clean installation comes together as a package like this.

By Michael on December 19, 2011

43 found this helpful


best bang for your buck

bought this for 2 power acoustik amps (ovn1-2000 and ovn4-840) and to rewire all my interior speakers. i didnt need anything else. i like how the power and ground wires are very flexible. i always used rockford wires. great value!

By DWES415 on February 22, 2010

44 found this helpful


Worth the Money

While expensive, this kit is worth the money in my opinion for a multiple amp setup. It definitely improved the sound quality and volume over the old wiring. I think everything included in the kit works excellent.

By Austin on September 17, 2013

43 found this helpful


Another positive review.

True 4 gauge and 8 gauge, Tons of speaker wire, which is 16gauge, but has insulation like a 14 gauge wire would. Tons of remote wire, easily enough to do two amps, great solid fuse holder, it's kind of strange to use maxi but it works well and the distribution blocks are very sturdy and sleek looking. Overall, I don't think there's a better quality kit for the money.

By Evan on December 28, 2011

43 found this helpful


ROCKFORD ROCKS!

If you want quality...here it is. ONE of the most flexible shielding coats I have ever worked with. NOTHING beats this type of coating, and the fine coper strands are up there with the best in size. I will give a hint to all you consumers. Tsunami is another car audio brand. They make a high quality/high-end series of cables and such. Tsunami distributes products such as there 4 gauge wire to Rockford Fosgate. Tsunami essentially IS Rockford Fosgate when it comes to wires! Prices are the same, but you may have more of a selection in color when it comes to Tsunami...

By Sean on May 13, 2011

42 found this helpful


Great Product

This amp kit is great and well worth the cost. Has everything needed to install amp. Since it is a dual amp install kit you would still need to buy at least one more rca cable set. I had to buy 2 more. Also depending on where your battery is and how far you are running the wires may be a little short. Other than that this is a great product and im glad i bought rockford fosgate. DO NOT try to save money and buy a no name wiring kit. Spend the extra money to get good wires.

By Travis on June 8, 2010

41 found this helpful


Rockford dual amplifier kit

I purchased this kit at less than half of cost in stores near my home and it would have been worth full price. Everything was there that was needed. It truly is a great kit at a great value.

By Christopher on November 22, 2012

41 found this helpful


Everything you need

Awesome kit. Plenty of wire for this job. I could see situations where more 4awg would definitely be needed, but it did everything we needed it to do. Very high quality wire.

By Bruce on January 10, 2015

40 found this helpful


BEST QUALITY

I bought this wire set a couple of months a go to install it in mt 08 Silverado along with some 10 inch MA audios I had laying around,(subs were also bought from here). But anyways, the amp kit was unbelievably flexible and quality was great and it being so close to where I live the shipping was short. Overall great web site and great quality stuff to offer.

By Carlos on December 5, 2010

40 found this helpful


good product

Good product works perfectly and is a good price.

By osvaldomexdf on November 1, 2011

38 found this helpful


Easiest install ever

the wire is insanely flexible. it is also about twice the diameter of the copper wire than that of home depot's 4 AWG wire. the wire is so easy to run and put into the distribution blocks and get it hooked up to your amps. wiring the speakers was the hardest part but I'm glad i had this kit to help. the entire install took an hour or two in my 96 jeep grand. I'm glad i spent the extra money and got this kit

By gnudrew25 on June 30, 2010

37 found this helpful


Quality stuff!

Have this kit set up with a Rockford Fosgate T-500 and Hifonics 4 channel amp. Everything is there and the material is typical RF quality: solid and well made. Bonus is that it ups the 1 year warranty on the Fosgate amp to an additional year! I'm a Sonic customer for life!

P.S. saved about $50 buying from Sonic - another bonus!

By Canuck Jay on April 11, 2011

34 found this helpful


KINGS OF CAR AUDIO

This is the best dual amp kit out there. Rockford dont dissappoint.

By Anonymous on March 11, 2019 Checkmark Icon Verified purchase

16 found this helpful


Dual amp wiring kit

Great kit. Quality products from Rockford once again I placed the amp in the trunk & could of used a little more speaker wire ran new runs & ended up short had to purchase more to finish my last speaker other than that it worked fine

By BILL on December 17, 2016

16 found this helpful


EASE OF USE

I'LL RECOMMEND THIS PRODUCT BECAUSE OF IT'S PRICE & HIGH QUALITY!!!!

By ROBERTO on July 7, 2016

15 found this helpful


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Modern vehicles often require specific brackets, wiring harnesses, and mounting solutions. A fit guide ensures:

  • You see only parts engineered for your exact vehicle
  • You avoid incompatible radios, speakers, or wiring
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Whether you're replacing a factory stereo or upgrading your entire audio system, the Fit Finder eliminates uncertainty.