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XLR Connector
The XLR connector (also Cannon plug and Cannon connector) is a type of electrical connector primarily used in professional audio, video, and stage lighting equipment. XLR connectors are cylindrical, with three to seven connector pins, and are often employed for analog balanced audio interconnections, AES3 digital audio, portable intercom, DMX512 lighting control, and for low-voltage power supply. XLR connectors are part of the international standard for dimensions, International Electrotechnical Commission, IEC 61076-2-103. The XLR connector resembles the DIN connector, but is larger, more robust and physically incompatible. The generic term "XLR" began as a trademark of Cannon (company), Cannon Electric, with the letters standing for X model connector with an added "L"atch feature, and "R"esilient neoprene rubber surrounding the female contacts. History and manufacturers The XLR connector was invented by James H. Cannon#James H. Cannon, James H. Cannon, founder of the Cannon ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Switchcraft
HEICO Corporation HEICO Corporation (NYSE: HEI and HEI.A) is an American aerospace and electronics company headquartered in Hollywood, Florida. The company designs, manufactures, and distributes components and systems for a range of industries including aviation, defense, space, medical, and telecommunications. HEICO operates through two main business segments: the Flight Support Group (FSG) and the Electronic Technologies Group (ETG). History HEICO was founded in 1957 as Heinicke Instruments Company, a manufacturer of laboratory equipment. In 1974, it entered the aerospace sector with the acquisition of Jet Avion Corporation. The company was renamed HEICO Corporation in 1986 and began focusing on the aerospace aftermarket by designing FAA-approved replacement parts and repair solutions. HEICO has grown significantly through strategic acquisitions—completing more than 90 acquisitions since the 1990s across aerospace, defense, electronics, and industrial sectors. Busines ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Professional Lighting And Sound Association
The Professional Lighting and Sound Association (PLASA) is a trade association headquartered in Eastbourne, United Kingdom. Its membership is made up of companies involved with the events and entertainments technology sector. History PLASA was originally known as the British Association of Discothèque Equipment Manufacturers (BADEM), a name used between 1976 and 1983. In 2010 PLASA merged with the Entertainment Services and Technology Association. and demerged in 2015. John Simpson, the PLASA Governing Body Chair at the time, said "This has been a difficult period for PLASA but it is also an opportunity for us to refocus. PLASA has a chance to reassess its role in this industry, its relationships and communications with its members, and the future directions of its commercial activities." Also during this timPLASA Showwas relocated to Earls Court and CEO Matthew Griffiths left his post. Peter Heath took the role of CEO in April of 2016. In the same year PLASA Show move b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Voyetra-8
The Voyetra-8 (Voyetra-Eight) is an eight voice polyphonic analog synthesizer. Released in 1982 by Octave-Plateau Electronics (later renamed Voyetra and still later merged with Turtle Beach Systems to become Voyetra Turtle Beach, Inc.), it was one of the first analog programmable synthesizers to be rack-mountable and remains one of the most flexible digitally controlled analog synthesizers. Design The Voyetra-8 is a 19" rack-mountable device, 3 rack units high at the face. Most units are bowed at the top and so cannot be placed below other rack mounted equipment more than a few inches deep. It is approximately 16 inches deep in the rack, and weighs around 38 lbs. Rear mounted plugs and a large heat sink make at least 4" rear clearance advisable. The front panel has numerous buttons and knobs, which are active in live performance. However, the instrument is more complicated than it looks; there are fourteen "pages" of controls. Extra "pages" are accessed by hitting certain sh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
MIDI
Musical Instrument Digital Interface (; MIDI) is an American-Japanese technical standard that describes a communication protocol, digital interface, and electrical connectors that connect a wide variety of electronic musical instruments, computers, and related audio devices for playing, editing, and recording music. A single MIDI cable can carry up to sixteen channels of MIDI data, each of which can be routed to a separate device. Each interaction with a key, button, knob or slider is converted into a MIDI event, which specifies musical instructions, such as a note's pitch, timing and velocity. One common MIDI application is to play a MIDI keyboard or other controller and use it to trigger a digital sound module (which contains synthesized musical sounds) to generate sounds, which the audience hears produced by a keyboard amplifier. MIDI data can be transferred via MIDI or USB cable, or recorded to a sequencer or digital audio workstation to be edited or played back. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wheelchair
A wheelchair is a mobilized form of chair using two or more wheels, a footrest, and an armrest usually cushioned. It is used when walking is difficult or impossible to do due to illnesses, injury, disabilities, or age-related health conditions. Wheelchairs provide mobility, postural support, and freedom to those who cannot walk or have difficulty walking, enabling them to move around, participate in everyday activities, and live life on their own terms. Wheelchairs come in a wide variety of formats to meet the specific needs of their users. They may include specialized seating adaptions, and individualized controls, and may be specific to particular activities, as with sports wheelchairs and beach wheelchairs. The most widely recognized distinction is between motorized wheelchairs, where propulsion is provided by batteries and electric motors, and manual wheelchairs, where the propulsive force is provided either by the wheelchair user or occupant pushing the wheelchair by ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Public Address System
A public address system (or PA system) is an electronic system comprising microphones, amplifiers, loudspeakers, and related equipment. It increases the apparent volume (loudness) of a human voice, musical instrument, or other acoustic sound source or recorded sound or music. PA systems are used in any public venue that requires that an announcer, performer, etc. be sufficiently audible at a distance or over a large area. Typical applications include sports stadiums, public transportation vehicles and facilities, and live or recorded music venues and events. A PA system may include multiple microphones or other sound sources, a mixing console to combine and modify multiple sources, and multiple amplifiers and loudspeakers for louder volume or wider distribution. Simple PA systems are often used in small venues such as school auditoriums, churches, and small bars. PA systems with many speakers are widely used to make announcements in public, institutional and commercial buildings ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Speakon Connector
The Speakon (stylized speakON) is a trademarked name for an electrical connector, originally manufactured by Neutrik, mostly used in professional audio systems for connecting loudspeakers to amplifiers. Other manufacturers make compatible products, often under the name "speaker twist connector". Speakon connectors are rated for at least 30 A RMS continuous current, higher than 1/4-inch TS phone connectors, two-pole twist lock, and XLR connectors for loudspeakers. Design A Speakon connector is designed with a locking system that may be designed for soldered or screw-type connections. Line connectors (usually FEMALE with the latch) mate with (usually 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). The design was conceived in 1987. Note that MANY users and even connector suppliers are confus ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trace Elliot
Trace Elliot is a United Kingdom-based bass amplification manufacturer, and has a sub-brand, Trace Acoustic, for acoustic instruments. History Opened in 1978, a music shop in Romford, Essex, UK, called ''The Soundwave Bassplace'', was building and hiring out PA systems to local musicians. It soon became apparent that some of this equipment was not being used simply as PA. Instead, it was being used by bass players, who for so long had to put up with underpowered amplification that was often merely a guitar amplifier with a modified tone circuit. In 1979, the owner of Soundwave, Fred Friedlein, and staff which included Alan Morgan (sales) and Stuart Watson (design engineer) realised the potential market and developed a range of products that incorporated MOSFET output stages driving large cabinets. That year Soundwave became Trace Elliot. There were several features which made this product unique: the GP11 pre-amp featured 11 graphic EQ bands which were very broad bands, ov ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Microphones
A microphone, colloquially called a mic (), or mike, is a transducer that converts sound into an electrical signal. Microphones are used in many applications such as telephones, hearing aids, public address systems for concert halls and public events, motion picture production, live and recorded audio engineering, sound recording, two-way radios, megaphones, and radio and television broadcasting. They are also used in computers and other electronic devices, such as mobile phones, for recording sounds, speech recognition, VoIP, and other purposes, such as ultrasonic sensors or knock sensors. Several types of microphone are used today, which employ different methods to convert the air pressure variations of a sound wave to an electrical signal. The most common are the dynamic microphone, which uses a coil of wire suspended in a magnetic field; the condenser microphone, which uses the vibrating Diaphragm (acoustics), diaphragm as a capacitor plate; and the contact microphone, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Obsolete Patterns
Obsolescence is the process of becoming antiquated, out of date, old-fashioned, no longer in general use, or no longer useful, or the condition of being in such a state. When used in a biological sense, it means imperfect or rudimentary when compared with the corresponding part of other organisms. The international standard IEC 62402:2019 Obsolescence Management defines obsolescence as the "transition from available to unavailable from the manufacturer in accordance with the original specification". Obsolescence frequently occurs because a replacement has become available that has, in sum, more advantages compared to the disadvantages incurred by maintaining or repairing the original. Obsolete also refers to something that is already disused or discarded, or antiquated. Typically, obsolescence is preceded by a gradual decline in popularity. Consequences Driven by rapid technological changes, new components are developed and launched on the market with increasing speed. The resul ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coaxial Power Connector
A coaxial power connector is an electrical DC connector, power connector used for attaching extra-low voltage devices such as consumer electronics to external electricity. Also known as barrel connectors, concentric barrel connectors or tip connectors, these small cylindrical connectors come in an enormous variety of sizes. Barrel plug Electrical connector, connectors are commonly used to interface the secondary side of a power supply with the device. Some of these jacks contain a normally closed switch; the switch can disconnect internal batteries whenever the external power supply is connected. Connector construction and terminology The connector pairs for barrel connectors are defined in terms of "plugs" and "receptacles"; receptacles are more commonly called "sockets" or "jacks" in the United States. Receptacles may be panel-mounted or circuit board-mounted. Plugs are on cables. Some in-line receptacles are also cable-mounted. Power is generally supplied by a plug to a r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
