User manual ELECTRO-VOICE PRO SOUND NEWS SOUND INNOVA

[. . . ] For you studio folks, it might surprise you how advanced the audio section is on modern entertainment video trucks. It's amazing how much gear you can pack in a space 8x8 feet or less. Watching a pro production mixer, like Ed Greene at the Oscars, handle several hundred inputs and outputs live to air will make your hair stand up! [. . . ] The story begins in spring 2005, when EV launched its ZX5 as the "world's most versatile loudspeaker": a 2-way portable powerhouse capable of filling large spaces with concert-quality sound, all while weighing in at less than 50 pounds. The motor behind EV's offering was built into the ZX5's sleek molded enclosure: the EV DVX-3150--a brand-new, 15-inch woofer, based on the all-new DVX platform. It's not often that an experienced team of engineers is given a blank piece of paper and asked to develop a product that represents the very best in all aspects, without compromising on a single detail. The DVX3150 features an all-new cone and surround structure for very low distortion and high excursion, along with an all-new frame and motor structure for high output with very low power compression. Having impressed everyone who heard it in the groundbreaking ZX5, the DVX concept soon materialized again in the X-Line Very Compact, the latest and smallest of the EV September 2006 prosoundnews. com [66] measurements using acoustic and laser data further sped perfecting the design so we could very quickly identify areas to improve and the solutions. This enabled a final design that is far superior to using traditional design methods. Unfortunately, you cannot simply eliminate the pole piece from the equation, so we did the next best thing. We have put a conductive but non-magnetic ring inside the magnet structure. Sometimes called a Faraday Loop, this shorting ring blocks the field from the coil that would interact with the iron core, without affecting the DC or static field generated by the large ceramic magnet of the motor structure. Another benefit is that is also counteracts the modulation of the static field that can be caused by the field generated by the voice coil. At the end of the day, of course, all this adds up to a superior-sounding loudspeaker. DVX goes to show that there is still room for improvement in the world of loudspeaker design. In DVX, the level of sonic clarity--even for an arena-size system running extremely high SPLs--is unprecedented. For a more highly illustrated version of this story, visit www. prosoundnews. com and click on "web bonus. " Innovations (continued from page 59) equivalent of your car motor losing power many times a second. To solve this problem, the woofers in the DVX line have been optimized via extensive computer FEA (Finite Element Analysis) to have linear magnetic fields that do not overly modulate. With the aid of a laser displacement measurement system, we can also optimize the suspension to not only have the right stiffness but also to stop the cone motion in a smooth and controlled fashion when the speaker is pushed to extremes. [. . . ] I would be very interested to hear from you post guys about what you like to see for documentation. Anyway, back to the theme about getting more people involved in the production of live shows and the business of recording them. One of the ways might be for you to attend a SPARS meeting in your area. [. . . ]