Speaker Cable is a form of electrical connection between loudspeakers and audio amplifiers. It is designed to carry even the strong signals as it is hosing sound after it is amplified. Speaker cables are majorly used in connecting speakers, public address systems, and distortion-free voices with low dB loss. The 3 critical electrical properties to check in speaker cable are – resistance, capacitance and inductance.
It is a type of unbalanced cable with a heavier gauge conductor than a patch, instrument or mic cable. It comes with bigger wires as they need to carry much higher voltage signals. The speaker cable comprises a banana clip, binding post or Speakon connector.
Based on different materials – Copper wire is used in speaker cable with PVC insulation. The oxygen-free copper improves the quality of the speaker cable. Also, the polyethylene insulation is better than the PVC one.
Based on speaker cable length – The ideal length required of the cable is as per the need of comfortably installing the cable. The resistance of the cable is dependent on the length of the cable. So, it means the longer the length of cable, the greater is the resistance experienced.
Based on sound quality – The conductor and shielding properties decide the sound quality of the speaker cable. For high-quality sound, it is suggested to prefer a conductor made of high purity copper material.
Gauge – Gauge is equivalent to the thickness of the wire or the cable. It is better to go with the thicker wire as it has less resistance. Also, it doesn’t break or bend easily. Also, the user needs to check the compatibility of the cable with the speakers.
Length – First, check the distance between speakers and receivers while deciding the length of wires. It is good to minimize the distance between the speaker and receiver to avoid the tangling of wire or interference of external noises.
Flexibility – More flexibility better is for the wire to select as it can be curved, twisted or rolled without affecting or breaking the cable. Thin wires are more flexible than thick ones, provided the quality is not compromised.
Interference and Resistance – The user can handle the interference issue with the shielding type of cable. It also helps in smooth sound flow and maintains sound quality. Also, less resistance high is the sound quality.
Conductivity – It is good to use a good quality connector with high conductivity to deliver high-quality sound. Copper is the best material for connectors and plugs to get high conductivity. Also, ensure that the terminals are firmly attached for proper sound transmission.
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