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Pro9200 Amp Rack Units

...ture and extend amplifier life.

Crest Audio Amp Rack Units

Not all audio components are created equally. Crest Audio has always striven to produce components which embody the finest audio quality and most rugged physical construction—regardless of cost. This design philosophy results in products which always exceed the audio specifications and physical demands of their target application. Crest Audio components could be designed with lower cost in mind, but now without sacrificing the excellence of our brand has come to represent. This difference is clearly audible when placing our products in A/B comparisons with competitors. Hands-on industry experience and research invests every aspect of the Crest Audio enterprise. Our engineering efforts are driven by a mandate to create products tailored to clearly defined applications and which apply proven technologies to well-researched user needs. Such real-world input ensures responsive product development and results in audio components with intelligent feature-sets, transparent user-interfaces, and intuitive control surfaces. Engineering is meaningless without quality construction. Crest Audio insists upon superior build quality employing the finest chassis design, components, mechanical construction, assembly, and quality control. We are so certain about the quality of our products that we offer five-year warranty protection in the U.S. and many other countries. Expert customer service and the industry's finest technical support complete the experience of owning and using Crest Audio products—trusted by professionals the world over.

Depth of Field - While a lens focuses on a single plane of depth, there is usually an additional area in focus behind and in front of that plane. This is depth of field. Depth of field increases as the iris is closed.. Used . There is more depth of field the wider the lens and le . Used . ...

Circular - A circular truss is a truss that is shaped like a circle and generally used in large open venues where the stage can be viewed from many angles.. Used . . Used . ...

MS - A stereo recording technique that uses of two different types of microphones, a directional or cardioid for the M facing forward and an omni-directional or figure-eight for the S with the lobes at a 9. Used . 0 degree angle. The main advantage being that the center sounds are not 45 degrees off-axis eliminating the gap in XY recording. Initially there were problems with reflections due to the use. Used . of two different types of mics, however mics have now been developed to overcome this problem....

Zoetrope - Early device for creating the illusion of continuous motion. A sequence of still pictures was viewed rapidly through slits in a rotating drum so that the images appeared to merge. . Used . . Used . ...

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 . ...

Amp Rack Units

Amp rack units refer to an assortment of rack-mounted or rack-protected PA amplification or sound reinforcement equipment that is set up to work with a mixer and loudspeakers. An amplifier, also called a power amplifier, is a basic signal processing unit that increases the power of an audio signal to make the sound from a human voice or music louder. A pro audio amplifier is used in professional sound systems as the last active component in the signal chain because it receives input from mixers or other signal processing units, increases the power of the signal, and sends the output to speakers. There are other types of amplifiers also referred to as amp rack units. A touring amplifier is simply a power amplifier that is designed to withstand conditions that touring musicians are exposed to especially being on the road most of the time. Live power amplifiers are used to support the audio demands of live performances. These amps make help create the unique experience of sound in live concerts. Some amp rack units are built by combining or adding amplifier modules with other parts. These are amplifier sub-units or parts designed to meet certain specifications. To have a whole amplification unit you may need a transformer, bridge rectifiers and filter capacitors, speaker connectors, input connectors, volume control, heatsink and a suitable rack mount case.