What can it be used for?You may use speaker cable to attach your amplifier to your speakers but it can also be used for other applications such as door intercom systems.Specification:Red line for polarity - easy connectivity (transparent outer insulation).165 Strands with a 0.14mm diameter per core. Area per core = 2.5mm² (AWG 14 Approx).CCA (copper clad aluminium) Outer diameter per core 3.6mm Width of 2 cores combined 7.5mm (can be easily stripped apart).Overview:A speaker cable is subject to high currents and voltages (completely different to signals that interconnect cables have to deal with) and therefore has to be designed properly in order to prevent the signal being lost or distorted. Speaker cable is the last line in the chain before the sound is produced, therefore it is essential the whole signal is transferred intact as you cannot recover it later. This speaker cable has tight winding of the high purity CCA conductors and durable transparent plastic (insulation). The intention of better quality speaker cable is to give the signal room to breathe so the signal can pass freely through the cable. The outcome is deeper bass, a smoother midrange, cleaner highs and a wider sound stage, giving your speakers the ability to play sound as it was meant to be heard and in some cases the difference in sound when using good quality speaker cable is almost like buying new speakers. Depending on the power of your amp, you may require thicker speaker cable (higher contact area). We stock a wide range of speaker cable so please view our shop, if you require help, then please give us a call. An amplifier is constantly outputting power, in order for it to do this efficiently with less resistance, speaker cable that matches your system should be used. A good analogy is water flowing into a watering can and then out of a spout. If the spout is too small water will build up, however if a large spout is used water can flow freely. Good practices such as not cutting or break.