This listing is for 2 Speakers Cables1 Pair20 Metre SpeakON CableMale To Male2 Pole Configuration ColourBlack Cable and Blue/Grey ConnectorsTechnical Spec;2 x 1.5mm Conductors7mm Outer diameter CableNeutrik Branded NL2FC Connectors 2 PoleLow-noise, highly flexible cableOverviewSpecially designed for high current amp to speaker applications, SpeakON cables have become an industry standard due to their high quality construction, and their exceptional performance in demanding P.A. or live situations.CompatibilityMost power amps that have SpeakON outputs use the 4-Pole female connector. If you wish to connect a standard 2-Pole cable, to use as a regular speaker cable, it will work fine, the 2 unused poles on the female connector will simply lay dormant until needed. This cable uses 2-Pole connectors, which carry a single pair of positive and negative contacts. It can be used as a standard speaker cable-to connect an amp to a speaker, or to branch off from a multi-speaker setup, however care must be taken when doing this, please read the 'further info' section below. FeaturesIn addition to using low noise highly flexible cable, they feature branded Neutrik NL2FC connectors* that include a number of useful features, unique to SpeakON. They lock into the jack with a quarter-twist, and include cable strain relief to prevent damage in the event of a sudden yank. They also have no exposed current-carrying components, making them safe to handle while live, with no risk of electric shock. They also do not short out during connection and disconnection, making them ideal for live, multi-speaker applications, in case of partial failure, speakers can be removed and replaced without risk of damage to other connected equipment. Since interchanging connectors are a main feature of the SpeakON system, the connectors can be removed and replaced with no soldering, the core wires are simply clamped into place with a small screw. Further infoThe additional poles on some SpeakON connectors also allow speakers to be Daisy Chained or alternatively standard cable like this could be used from the output on your current speaker to a second speaker.On a multi-pole connector, a second cable can be wired to the unused contacts, allowing another speaker to be chained on to the first, powered by the same amp, without the need to run a separate cable from it. The number of speakers that can be Daisy-Chained together depends on the impedance of your amplifier. Usually no more than 2 speakers can be chained, as most amps are rated at 4-8 ohms. Depending on the resistance of your speakers, if more than 2 are connected, it could cause the resistance to drop below 4 ohms potentially damaging your amp. Further infoBi-AmpingSpeakONs multi-pole design (not present on this cable) was created with Multi-Amping in mind, allowing users to use a collection of different amps (or one amp that can output in a bi-amp format) to drive a collection of speakers. Certain amps are dedicated to reproducing particular frequencies exceptionally well; there are dedicated bass amps, and those that focus on high frequency sound, likewise with speakers. If you are unsure what cable you require, please feel free to give us a call and we'll be happy to help. *Since the appearance of numerous counterfeit SpeakON connectors online, inventors Neutrik advised consumers that these bogus connectors do not include their patented safety features. Rest assured these are official Neutrik branded connectors.