The importance of using OFC cable over CCA

When it comes to enhancing your audio experience, whether that be on a boat or in a car, the choice of wiring cannot be underestimated. Oxygen-Free Copper (OFC) and Copper-Clad Aluminum (CCA) are the two common options for audio wiring, but there's a clear winner in terms of performance, durability, and overall value. In this blog post, we'll explore why it's essential to use OFC cables instead of CCA.






The Battle of Conductors: OFC vs. CCA

Conductivity is a critical factor, as it directly affects the signal quality that travels from your audio system to your speakers. OFC and CCA cables are constructed using different materials, resulting in significant differences in their conductivity.

  1. Oxygen-Free Copper (OFC) cables are made from high-purity copper, with a conductivity rating of nearly 100%. The absence of oxygen in the copper composition reduces signal loss and ensures minimal resistance. This translates to a cleaner, more accurate audio signal reaching your speakers and amplifiers. The high conductivity of OFC cables contributes to improved sound quality, better bass response, and enhanced clarity.

  2. The Downside of Compromise: Copper-Clad Aluminum (CCA) cables consist of an aluminum core coated with a thin layer of copper. While they are more affordable due to the lower cost of aluminum, their conductivity is significantly lower than OFC cables. The aluminum core's conductivity limitations introduce higher resistance, leading to signal loss and a reduction in audio quality. In comparison to OFC cables, CCA cables often result in diminished sound clarity, reduced bass impact, and an overall less satisfying listening experience.

copper vs al


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Durability and Longevity

Another crucial aspect to consider is the durability and longevity of the cables. OFC cables offer notable advantages in this regard:

  1. Corrosion Resistance: The purity of copper in OFC cables renders them highly resistant to corrosion, ensuring a longer lifespan. This is especially important in the context of audio installations where exposure to varying weather conditions and temperature changes is inevitable.

  2. CCA Vulnerability: CCA cables are more susceptible to corrosion due to the aluminum core, which can lead to a deterioration in performance over time. This makes OFC cables the more reliable choice for audio systems that require consistent, high-quality performance.



When it comes to optimizing your audio system, choosing the right components is essential. The choice between OFC and CCA cables can significantly impact the quality of sound that reaches your ears. While CCA cables might appear to be a budget-friendly option initially, the compromises in sound quality, durability, and longevity make them a less attractive choice in the long run.

Investing in OFC cables for your car audio setup ensures that you're getting the most out of your system. The higher conductivity, corrosion resistance, and overall audio performance offered by OFC cables make them a superior choice for audiophiles and car enthusiasts alike. Remember, great sound is not just about speakers and amplifiers—it's about every component in the chain working harmoniously to deliver an exceptional audio experience.

You can view our range of OFC power and speaker wire here