The F 18 PWH is concepted as a straight waveguide horn with a vented transducer cabinet. The recommended active x-over frequency 125 Hz, 18 dB/Oct. Butterworth. The 18" EVX 180A OEM loudspeaker chassis is reliably protected against critical power levels and short thermal overload by thermo switches and 4-way halogen lamp protection. The F 18 PWH cabinet is made of poplar plywood 18 mm. All corner joints and braces are grooved and glued. Braces are screwed additionally in order to reduce natural resonances to a Minim
um. The cabinet surface is finished in extremely resistant needled black-mottled felt. A powder-coated steel grid and an acoustic foam front protects the speaker front. The connector panel uses two 4-pole Speakon connectors (Input/Output) for safe connection and easy chaining to the next loudspeaker. The 4 handle trays on the sides guarantee easy and safe transport. 4 large-sized rubber feet and allow easy handling and safe stand. Two recessed speaker stand threaded flanges on the top allow various setups.
Brands like DYNACORD, ELECTRO-VOICE, RTS and others are under the roof of Bosch Communications, Inc.
EVI Audio GmbH as the European headquarters with the electronics manufacturing is located in Straubing, Germany. The loudspeaker boxes are produced in a second facility in Hohenwarth, approximately 45 km away.
In Europe approximately 650 employees are occupied, approximately 500 of which are in Germany. Regional PI-distribution offices are in all large areas of business concentration across Germany. EVI Audio GmbH is also responsible for the activities of the subsidiaries in France and UK and for the territory of Africa and Middle East.
The place of work is Straubing, a mid-size city in close proximity to the Bavarian Forest with his many idyllic little villages. This area offers all amenities and schools close by and all possibilities of living, leisure and sports.
- Measured in both lux and lumens. For any given luminaire (lighting instrument or fixture), this depends upon the power of the bulb, the design of the instrument (and its corresponding efficiency), the. Used . presence or absence of color gels or gobos, distance from the area to be lit, the color and subtance to be lit, and the neuro-optics of the total scene (that is, the relative contrasts to ot. Used . her regions of illumination). ...Intelligent Lighting
- Intelligent lighting is stage lighting that has automated or mechanical functions beyond traditional, stationary illumination. While intelligent lights can at times display complicated effects and fun. Used . ctions, they are only capable of performing the task set up by the programmer and are therefore sometimes referred to as obedient lighting. Intelligent lights come in many forms, but commonly. Used . are yoked moving heads or scanners and are usually controlled by DMX signals from lighting controllers or consoles. ...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.
- An early type of stage light in which an intense illumination is created when an oxyhydrogen flame is directed at a cylinder of lime, also called calcium oxide, which can be raised to white incandesce. Used . nce heat without melting to producing brilliant illumination. The limelight effect was discovered early in the nineteenth century by Goldsworthy Gurney. A Scottish engineer, Thomas Drummond. Used . , realized that the light would be useful for surveying and built a working version in 1826. Therefore, the light is sometimes known as the Drummond Light. The Limelights first theatrical use was in 1837 at ...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...