|
The Speakon (sometimes stylized speakON) is a type of cable connector, originally manufactured by Neutrik, mostly used in professional audio systems for connecting loudspeakers to amplifiers. The name Speakon is a registered trademark.〔Neutrik. (Speakon trademark page )〕 Other manufacturers make compatible products,〔E.g. (Switchcraft HPC (High Power Connectors) Series )〕 often under the name speaker twist connector. Speakon connectors are rated for 40 A RMS continuous current, higher than 1/4-inch TS phone connectors, two-pole twist lock, and XLR connectors for loudspeakers. Compared to standard phone plugs, Speakon connectors also have the following advantages: * No possible confusion with low-current microphone or instrument cables. * They lock into their sockets with a twisting motion, making them significantly less prone to disconnection than standard phone plugs. * They are shielded from human touch, preventing electrical shock from a high-powered amplifier. * The contacts do not short out during connection or disconnection. This can be a benefit when working with sound equipment that is in operation. * The chassis receptacles are airtight, so do not provide an air leak path from speaker enclosures. A Speakon connector is designed with a locking system that may be designed for soldered or screw-type connections. Line connectors (female) mate with (male) panel connectors and typically a cable will have identical connectors at both ends. If it is needed to join cables, a coupler can be used (which essentially consists of two panel connectors mounted on the ends of a plastic tube). Recently the manufacturer has introduced a new series called STX which includes also male line connectors and female panel connectors (in the four-pole and eight-pole version only). Speakon connectors are designed to be unambiguous in their use in speaker cables. With jack and XLR connections, it is possible to use low-current shielded microphone or instrument cables in a high-current speaker application. Speakon cables are intended solely for use in high current audio applications. Speakon connectors arrange their contacts in two concentric rings, with the inner contacts named +1, +2, etc. and the outer contacts named −1, −2, etc.〔(Electronics 2000 | Pin-outs | Speakon Connectors )〕 The phase convention is that positive voltage on the + contact causes air to be pushed away from the speaker. Speakon connectors are made in two, four and eight-pole configurations. The two-pole line connector will mate with the four-pole panel connector, connecting to +1 and −1; but the reverse combination will not work. The eight-pole connector is physically larger to accommodate the extra poles. The four-pole connector is the most common at least from the availability of ready-made leads, as it allows for things like bi-amping (two of the four connections for the higher-frequency signal, with the other two for the lower-frequency signal) without two separate cables. Similarly, the eight-pole connector could be used for tri-amping (two poles each for low, mid and high frequencies with two unused), or quad-amping (two poles each for high, mid, low and sub). Another use for the four-pole cable is to carry two channels of amplified signal from an amplifier to a pair of loudspeakers using a 'combiner' Y-lead connected to the two output channels, and a 'splitter' Y-lead to feed the loudspeakers. The 'combiner' and 'splitter' Y-leads are the same: two two-pole connectors on one end, connected to the ±1 and ±2 pins, respectively, of a four-pole line connector at the other end.〔(MX21's bi-amp information: custom speakon cable )〕 Some amplifiers and mixer-amplifiers are configured to do this without the need for a 'combiner'. Also available are 2-pole "combo" receptacles that can also accept 4-pole cables and 1/4″ phone plugs. ==See also== * PowerCon 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Speakon connector」の詳細全文を読む スポンサード リンク
|