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218 Sub Line Array Subs

Master-Audio Line Array Subs

Ampere - The ampere (symbol: A) is the SI base unit of electrical current equal to one coulomb per second. It is named after André-Marie Ampère, one of the main discoverers of electromagnetism.

Th. Used . e ampere is that constant current which, if maintained in two straight parallel conductors of infinite length, of negligible circular cross-section, and placed 1 metre apart in vacuum, would . Used . produce between these conductors a force equal to 2×10–7 newton per metre of length....

Color gel - Color gel is a translucent or transparent coloured material that is used in theatre to colour light. Modern gels are usually made of polycarbonate or polyester, but the name arose from the gelatin ori. Used . ginally used. See gel (theater).

Gels are also used in photography and cinematography for the purpose of color correction, and in this capacity are usually called color filters.<. Used . br />
Similar colors may vary between different companies' formulations - for instance, they all have a color named 'bastard amber', yet Rosco's bastard amber is different from Lee's is different from G...

Ellipsoidal Reflector Spotlight - ERS is an acronym standing for Ellipsoidal Reflector Spotlight. These are sometimes known by their brand names, especially Leko, short for Lekolite, the name given to them by their inventors, Joseph L. Used . evy and Edward Kook. ETC's Source Four has become a very popular ERS throughout the industry, and some people use the term Source Four to refer to spotlights in general. They come in many for. Used . ms, and are the most numerous and important instrument type in use. The flexibility of the ERS allows them to fulfill the bulk of the lighting roles in the theatre, from area lighting to close specials, from l...

Club Systems - A club system is an all in one audio or lighting set up designed for permanent installation in a nightclub or similar venue. Used . . Used . ...

Amphitheatre - The name amphitheatre (alternatively amphitheater) is given to a public building of the Classical period (being particularly associated with ancient Rome) which was used for spectator sports, games an. Used . d displays.

Apart from function, the important outward distinction between an amphitheatre and a theatre is that an amphitheatre is round or oval in shape (whereas a classical th. Used . eatre was semi-circular). However, an amphitheatre differs from a circus, which was used for racing and looked more like a very long, narrow horse shoe.

The best-known amphitheatre in the world is...

Line Array Subs

Line array subs are essentially a long line segment of numerous smaller speakers attached together, designed to simulate a much larger speaker. Line array sub woofers have become the speaker of choice for both large concert venues and outdoor events, not to mention public announcement systems, thanks to their practicality and high quality sound output, which is considered to be superior conventional speakers. Two kinds of line array subs are used the most common are vertical line array subs, which produce superior sound output as they create a 3dB drop-off with vast horizontal projection, yet very little vertical diffusion. And because the speakers are installed close together, they can interfere with each other in a constructive way that helps to project the sound waves a much further distance than regular speakers. Essentially, what this means is that line array sub woofers are able to concentrate sound in a very narrow wavelength, which can be directed straight at the audience for maximum effect, making them perfect for public announcements. Vertical line arrays are also the main choice for sound production in live concerts, as they have a very wide horizontal output pattern, allowing the sound to be focused over a large area. Vertical arrays are strategically placed to provide optimum coverage for the entire venue, while horizontal arrays are normally used at the front of the stage to compliment the vertical line array subs.