Speaker Cable Cabletech CCA 4.0mm — Oxygen-Free Copper-Clad Aluminium Conductor

Cabletech CCA 4.0mm speaker cable features a copper-clad aluminium (CCA) conductor engineered for transmitting audio signals between amplifiers or receivers and passive loudspeakers. The 4.0 mm cross-sectional conductor size is intended to provide a compromise between electrical conductivity and material cost, making it suitable for a range of domestic and mobile audio installations where longer runs or multiple channels are needed. The cable is supplied as a two-conductor speaker lead for left and right or multi‑channel connections, with insulation designed for typical indoor and in-car routing.

Advantages

The Cabletech CCA 4.0mm speaker cable delivers dependable signal transmission while reducing material cost compared with pure copper cables. Its copper-clad aluminium conductor offers improved surface conductivity and solderability compared to plain aluminium, and the 4.0 mm conductor cross-section helps limit resistance on short to medium runs. The construction is flexible enough for routing during installation in home audio systems, car audio setups, and multichannel surround systems.

Suitable for

• Home audio systems connecting stereo amplifiers and passive speakers
• Car audio installations where a balance of cost and performance is required
• Multichannel and surround sound systems with multiple speaker runs
• Short to medium-length speaker runs where lower resistance is beneficial

When it may not be suitable

This CCA speaker cable may not be the best choice for high-power professional installations or very long cable runs where the lower conductivity of CCA compared with pure copper could increase losses or heat generation. For audiophile applications that demand the lowest possible resistance and maximum long-term durability, oxygen-free pure copper conductors remain preferable.

Key specifications

• Conductor type: copper-clad aluminium (CCA)
• Conductor cross-section: 4.0 mm² (nominal)
• Cable type: two-conductor speaker cable
• Intended use: speaker signal transmission (amplifier to passive speaker)
• Typical routing: indoor and in-vehicle installations

How to use

Strip a short length of insulation from each conductor and ensure clean contact surfaces before connecting to speaker terminals or amplifier binding posts. Observe polarity markings on the cable to maintain consistent phase between amplifier and speaker (+ and −). For reliable connections, use properly sized ferrules, banana plugs, or bare-wire insertion as supported by the terminals. Route the cable away from power cords and signal cables to reduce potential interference and avoid sharp bends or kinks that could damage the insulation or conductor.

What to consider before purchase

• Required cable length and number of runs for your setup
• Power handling and whether CCA conductivity meets system requirements
• Type of speaker and amplifier terminals (banana plug, spade, bare wire)
• Installation environment (in‑wall, exposed indoors, or in-vehicle)

Usage recommendations

For typical home and car audio use, select cable lengths that minimize excess slack and use quality terminations to ensure low-resistance connections. For long runs or high-power systems, evaluate whether a pure copper conductor is preferable to maintain lower resistance and improved long-term performance.