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TT55 Line Array Speakers

RCF Line Array Speakers

RCF was founded in 1949 in Reggio Emilia, an Italian city with excellent mechanical and electronic industries. Over the years the company has established itself as a world leader in design, production and marketing of high technology Professional and Commercial Audio products. Throughout its history the company has continued to expand and diversify to satisfy every audio and musical amplification need: from single systems to big, complex projects. For sixty years the main administrative and production facility has been in Reggio Emilia where the company has a highly professional and specialized personnel. RCF markets its products through sales offices in the United Kingdom, Germany, France, Spain and United States. In the rest of the world the Company operates through a consolidated, capillary network of distributors. Today RCF employs more than 250 people and sells its products in more than 100 countries worldwide. Since 1995 the company has been ISO 9001 certified.

Backlight - Light that comes from the upstage, behind all actors and scenery. It helps to separate them from the back drop.

Light coming from upstage, behind scenery or actors, to sculpt and separat. Used . e them from the background. Used . ...

Analog signal - An analog or analogue signal is any variable signal continuous in both time and amplitude. It differs from a digital signal in that small fluctuations in the signal are meaningful. Analog is usually t. Used . hought of in an electrical context, however mechanical, pneumatic, hydraulic, and other systems may also use analog signals.

The word "analog" implies an analogy between cause an. Used . d effect, voltage in and voltage out, current in and current out, sound in and frequency out.

An analog signal uses some property of the medium to convey the signal's information. For example, an ...

Software Console - Softare Lighting Consoles act just like hardware lighting consoles except that they are software driver and usually run off of a desktop or laptop computer accompanied by a DMX converter. Lighting con. Used . trol consoles (also called lighting boards or lighting desks) are electronic devices used in theatrical lighting design to control multiple lights at once. They are used throughout the entert. Used . ainment industry and are normally placed at the FOH position or in a control booth. All lighting control consoles can control dimmers which, in turn, control the brightness of the lights. Many modern consoles ...

Intelligent Fixtures - Intelligent Fixtures or Moving Lights were originally implemented in 1972, but the first computer-controlled stage lighting fixtures began to gain widespread acceptance in the concert industry in the . Used . early 1980's. As the digital age progressed, the cost of these fixtures was reduced and they slowly started being used in more 'traditional' theatrical environments. Intelligent fixtures are . Used . currently used in almost all major theatrical productions.

Usually relying on compact arc lamps as a light source, these fixtures generally use stepper motors connected to varying internal devices...

Joule - A term in the international system for a unit of electrical, mechanical, and thermal energy equal to the work done when a current of one ampere is passed through a resistance of one ohm for one second. Used . . Surge protectors are often given joule ratings, but this rating refers only to the amount of energy they can absorb, not what gets through. Its value was calculated originally by James Pr. Used . escott Joule, but the term was first introduced by Dr. Mayer of Heilbronn....

Line Array Speakers

Line array speakers make up a loudspeaker system to create a sound source that produces an evenly distributed sound output. The driver of each line array element is close enough to the driver of the next element to create constructive interference. The resulting sound waves go farther than sound waves from traditional loudspeakers. Line array systems date back to the early days of research in acoustics. Many old town halls and public venues still have old line source boxes which were found to project voice well though they are much smaller than horn-loaded speakers. These days, line array speakers use different drivers for high-, mid- and low-frequency passbands that must be in line. Each enclosure must be set up closely to form columns composed of these drivers. To increase the frequency range and maximum sound pressure, the number of drivers per enclosure must be increased. The orientation of line array speakers may vary. Vertical arrays are excellent for focusing sound at audiences without wasting output energy on ceilings or empty air above the audience because of its very narrow vertical output with a normally-wide horizontal pattern. On the other hand, horizontal line arrays have a very narrow horizontal output with a tall vertical pattern. For hanging concert speakers which are usually part of a concert reinforcement system, enclosures are set up together using a specialized rigging hardware and they hang from a single point. These line array speakers are curved backward at the lower portion so that the sound will reach more audience.