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9442A Amp Rack Units
Altec Lansing Amp Rack UnitsEstablished in 1937, today Altec Lansing Professional is a leading manufacturer of high performance, high quality professional audio systems and components. Altec Lansing traces its history to the group of Western Electric® engineers who developed the first commercial professional sound system for the movie "The Jazz Singer" starring Al Jolson. This "talkie" revolutionized motion picture sound, and marked the starting point of the twentieth century audio revolution. Altec Lansing celebrates the company's rich heritage in the professional audio industry. Our history of technological innovation is unmatched.
Lighting instruments - There are a variety of instruments frequently used in the theater. Although they vary in many ways they all have the following four basic components in one form or another...
* Box/Housin. Used . g - a metal or plastic container to house the whole instrument and prevent light from spilling in un-wanted directions.
* Source of light (bulb or lamp).
* Lens or opening - the g. Used . ap in the housing where the light is intended to come out.
* Reflector - behind or around the light source in such a way as to direct more light towards the lense or opening.
Effects - Lighting Effects are devices that are generally used to enhance other lighting or staging devices, like foggers, lasers or pyrotechnics and can also have and effect on setting the mood during a perfor. Used . mance like color changers.
. Used . ...
Conventional - Conventional lighting is made up of stationary lights that can be moved, but only via manual means of adjusting, or focusing the fixture with a yoke. However, some aspects of the lights, like brightne. Used . ss and color may be controlled remotely
by consoles or analog audio inputs. There are many different conventional lights used in stage lighting design including floodlights, pars, foll. Used . owspots, ellipsoidals, fresnels, strips and cycs. ...
Volt - A unit in the international system representing the electric potential and electromotive force equal to the difference of electric potential between two points on a conducting wire carrying a constant. Used . current of one ampere when the power dissipated between the points is one watt. Named after Alessandro Volta for his work with batteries, the term was adopted in the 1880s and is still in u. Used . se today....