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

(1366 Reviews)

Price
$33.48

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Quantity
(30000 available )

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Reviews
  • DJ Smith

    > 24 hour

    Does as intended, wires are amazingly nice and thick, for good power source really worth the buy, made my install easier since i could run the wire backwards through the firewall then install the fuse.

  • Dan

    > 24 hour

    KnuKonceptz has what seems to be almost double the strands of wire than other brands. I wont buy anything else.

  • brettwsw

    > 24 hour

    Great install kit.

  • Jimmyb21

    > 24 hour

    Just finished installing my system. This was the first time and I wanted to get a kit that had everything I needed to make it easier. This had more than enough. I installed a 12in kicker with a cap and a 1000 wt kendwood amp. The cables are great quality and the shield is easily bendable, discretion was no problem for me. The fuse is great quality too. Spend a little bit more and get the good stuff. YOU WONT REGRET IT.

  • Mikel ThreeZeroTwo

    > 24 hour

    The price of this kit is what all kits like this should cost. Walmart ones have less wire (and length) and cost more. I am currently happy with this kit with a few exceptions listed in the Cons section of this review. This kit was used in a 1989 Bronco and my biggest problem is that I couldnt ground back to battery with this kit.

  • Ronald

    > 24 hour

    I havent even installed it yet BUT WOW. I have another 4 gauge amp kit that I got a few days ago locally. This is my first time setting up amps but this is THICC. That center area thats sticking out is probably as thick as the other wire. Im gonna have to go get a piece later and take a picture of them side by side.

  • Ryan

    > 24 hour

    Great high-quality kit for a professional install.

  • SuperD952

    > 24 hour

    This is a great kit. It is true 4 gauge wire and seems to be high quality. This is the 2nd kit of 4 gauge Ive installed from knukoncepts and I havent had any problems.

  • Petersoccorso

    > 24 hour

    Had everything I needed to complete my install

  • Jeff Tacker

    > 24 hour

    Great quality amp wiring kit. Worked really good for hooking up the sound system inside my truck.. Would purchase again



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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