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DLA 12 Line Array Speakers

...o
Performance P214D or P216D
digital controller.
The frequency response of one
single DLA12 is from 55Hz to
18KHz +/- 3dB. The maximum peak
SPL is 136dB.
The DLA12 is designed to form a
line array simply by stacking several
units.

Audio Performance Line Array Speakers

Founded by S. Kevin Lewis, Performance Audio has been a primary supplier of professional sound systems and equipment both regionally and nationally since 1977. Based in Salt Lake City, Utah, Performance Audio has serviced the sound system needs of touring entertainers, business and trade shows, as well as the film and video production industry for over 30 years. In the late 1980's Performance Audio opened one of the region's first Pro Audio wholesale electronics supply stores. This allowed much more efficient distribution of equipment to a rapidly growing national customer base. This division of Performance Audio now provides over 60% of the company's revenue. In 1990 Performance Audio began providing designs and equipment for Theme Parks, Amusement Attractions, and Trade Shows. This exciting new area has allowed Performance Audio to expand its horizons even further into the entertainment and communication world. Successful designs and installations include many of the industry's most recognizable names in Las Vegas and Florida. Just prior to the 2000 Summer Olympics, Performance Audio was contracted by Technifex, a leading special effects creator and design firm, and Fox Studios, to design and install special effects audio systems for their Titanic attraction in Sydney, Australia. While its business was largely based on the concert stage for the first decade, Performance Audio became increasingly more involved with system design and installation for all types of performance and entertainment space, as well as broadcast and recording studio design and supply. As the digital age arrived, Performance Audio became a leader in digital workstation technology, and has working systems in place with film and video producers, CD replicators and tape duplicators, as well as numerous recording and broadcast studios.

Scanners - A scanner is an intelligent light that uses a mirror to perform a large variety of effects and operations while the fixture itself remains stationary. Scanners are generally remotely controlled by a l. Used . ighting control console, but some can be preprogrammed. A single scanner can replace the functions of many conventional lights and can often perform tasks conventional lights can not. Most m. Used . odern scanners utilize DMX-512 signals for control, but some can be controlled by way of analog signals as well. ...

Outboard Effects - Outboard effects hardware is generally used to artificially enhanced or processes sounds or audio signals to artistically emphasize or place the content into a more appropriate signal.. Used . . Used . ...

Stepper Motor - A stepper motor is a type of electric motor that is used when something has to be positioned very precisely or rotated by an exact angle.

In a stepper motor, an internal rotor containing. Used . permanent magnets is controlled by a set of stationary electromagnets that are switched electronically. Hence, it is a cross between a DC electric motor and a solenoid. Stepper motors do not. Used . use brushes and commutators.

Stepper motors have a fixed number of magnetic poles that determine the number of steps per revolution. Most common stepper motors have 200 full steps/revolution, mea

Moving Mirror Lights - A common term for a moving mirror stage/concert light. This light in particular is common is clubs, discos and lounges. As opposed to the moving head lights that are more common for theatre, concerts. Used . and stage events. . Used .

Wrap - A term used in Rigging for a short sling used to wrap a beam or truss or the action of wrapping a truss. In film and television production WRAP is an acronym for Wind Reel And Print and announces the. Used . end of a scene or session. . Used . ...

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.