KnuKonceptz KCA Complete Oversized 4 Gauge 2 Channel Subwoofer Amp Installation Wiring Kit

(1366 Reviews)

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$33.48

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(30000 available )

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Reviews
  • AK

    > 24 hour

    great kit. Comes with everything and then some.

  • Cassandra

    > 24 hour

    I ordered based on other reviews and the price. Product is of high quality and couldnt be happier. I will never pay local retail prices again for these products. One of the best kits I have ever owned and the best price I have ever paid.

  • Belltower Bullz

    > 24 hour

    Very nice wire- Power and ground wires are true 4 gauge with nice thick strands. Very flexible and easy to route through cab of vehicle. Comes with plenty of terminals to suit most installs. However, as many reviewers have said, the rcas are complete garbage. I wish I had trusted these reviews and saved myself the headache. One channel shorted out after 1 day- had to take interior back apart to run new rcas the day after install. No problems since then. Go ahead and save yourself the time and the frustration and order a quality set of rcas from Rockford/JL/etc. when you order this kit.

  • RollinCoal

    > 24 hour

    Great quality and price.

  • Keyser Soze

    > 24 hour

    Cables are good connectors arent.

  • Jamey B.

    > 24 hour

    The fuse holder is the only issue. If you purchase this and you find that your amp stops working and the fuse looks healthy replace it and the fuse holder anyways. Ive purchased 3 of these kits so I know what Im talking about

  • Alejandro Ferecides

    > 24 hour

    Very thick wire, very nice quality.

  • Derrick Ireland

    > 24 hour

    Great Quality wires are made of good material oversized for sure. The only thing is the RCA cable feels a little cheap but other than that I would recommend.

  • jason h.

    > 24 hour

    WOW! This is some good thick wire! Its very hard to get this wire into the correct size terminal. So plan on using 2 gauge terminals, unless you dont mind losing a few strands of wire. With that said, Its very to use, solder, bend, and slide into wire loom. So stop reading reviews and get this kit! Its the one youre looking 4! Unless you really need OFC.

  • Evan L

    > 24 hour

    I used this kit to power the 4 channel amp for my mids and highs. It has been installed for a month now and everything is fine. The RCA cable provided is good, power and ground wire have very thick CCA, and the fuse holder provided was solid. If my opinion changes on this product I will surely voice it.



The KCA Kable (Kolossus Copper Aluminum) is the next generation of our Copper Clad Aluminum (CCA) power and ground cables. The new KCA 4 Gauge uses 29.44mm^2 of Copper Clad Aluminum (CCA) to transfer current from your battery to amplifier. Copper Clad Aluminum (CCA) is made up of 90% Aluminum and 10% Copper. The KCA 4 Gauge Kable used throughout this kit offers incredible flexibility and a rugged PVC outer jacket that is impervious to grease and oil. The PVC outer jacket can withstand extreme temperatures (-40 to 105 C).

KnuKonceptz KCA 4 Gauge Complete 2 Channel Amplifier Installation Kit

The KCA-K4 Amplfier Installation Kit Includes:

  • 18" 4 AWG Blue KCA Kable (CCA) Power Wire
  • 3" 4 AWG Black KCA Kable (CCA) Ground Wire
  • Inline fuse holder with 80A fuse
  • 5 Meter Bassik Twisted Pair OFC RCA Cable
  • 20 Feet Bassik 14 AWG CCA speaker wire
  • 5 Meter Blue Remote / Turn one wire
  • 2 gold plated 4 gauge ring terminals, 2 gold plated 4 gauge spade terminals
  • grommets and wire ties

How many watts can this amp kit handle? At KnuKonceptz, we do not use "watts" to rate our amp kits. This is a very inaccurate method to determine what the proper gauge wire required for your amp installation. Many amp manufactures do not represent the output of their product accurately in watts. Please refer to your amplifier"s fuse rating, this is a number a manufacture can not fake, well they could but it would put their product in harms way! Add up the fuses on the end of your amp (two 30A fuses = 60A total draw) If this number is under 80A, this kit will fit your application. If over 80A, a larger gauge wire would be required or use our Kolossus Flex 4 gauge amp installation kit.

Beware of "1600 Watt" amp kits that include a 50 or 60A fuse. Its physically impossible for these kits to support this load (refer to our comparison photo)

Do not use on loads over 100A, for this we recommend the KnuKonceptz Kolossus 4 Gauge amp kit, which uses Oxygen Free Copper.

KCA 4 Gauge - Oversized for higher loads vs other CCA cables


Our Kolossus Copper Aluminum (KCA) series cable was designed specifically to be larger than the competition. Copper Clad Aluminum is less conductive than Oxygen Free Copper when comparing like sized conductors. CCA however is also much less expensive. So by increasing the area in our KCA cable, KnuKonceptz was able to achieve similar performance to OFC, but without the higher cost.

For this exact reason is why our cable is larger, to achieve similar performance, for less money. The graph below shows, based on area, our cable is at least 40% larger than comparable brands.

Bassik Twisted Pair 2 Channel RCA Cable

Our Bassik RCA is just that, a straight forward design.

Bassik RCA Features include:

  • Oxygen Free Copper construction
  • Twisted Pair Geometry for noise rejection
  • Ultra Flex, soft touch PVC allows this cable to fit in tight places
  • Easy channel identification
  • Gold Plated RCA Connectors.

About KnuKonceptz KCA Power Wire and how it compares to other cables

  • Using American Wire Gauge standards, the gauge of stranded wire is determined by the total area of the conductor.
  • To calculate this you would take the area of each strand and add it together. This area, in square mm, then determines gauge.
  • Diameter is not as critical with stranded wire, this is due to the tiny air gaps between each strand. Diameter may fluctuate with strand size and how tightly wound the rope of the cable is.
  • The smaller the number, the larger the wire, until you reach zero or aught (0). From zero, you then have double aught (00), three aught (000) and so on.
  • Based on AWG, the true gauge of this cable is #3, larger than traditional 4 gauge

  • We"ve compared several popular 4 gauge amp kits from other manufactures. The above chart displays the manufacture and the calculated gauge based on area.
  • All cables tested were labeled as 4 gauge. The X axis indicates gauge by area and where each cable"s measurement placed itself on the American Wire Gauge scale.
  • Several brands barely reached the required area of 8 gauge.

Every KnuKonceptz amp installation kit clearly states these critical specs:

  • Wire type - CCA or OFC
These materials are commonly used, but not commonly stated when shopping online. Know what you are purchasing. Both metals are capable of performing up to their rated loads.
  • American Wire Gauge
Wire gauge is crucial to powering your system correctly. Undersized cable will create unsafe conditions and may shorten your amplifier"s life
  • Max Load (amps)
Wire"s ampacity changes with gauge and materials. KnuKoncept does not rate cable based on watts. Amplifier manufactures do not always truthfully state the output of their product, check your on board fuses!

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