User manual ELECTRO-VOICE PRO SOUND NEWS SOUND INNOVA

[. . . ] Besides, it's fun to see all the geek gear the video guys bring to the party. 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! [. . . ] 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. It's not just about the greater overall output. In DVX, the level of sonic clarity--even for an arena-size system running extremely high SPLs--is unprecedented. Alan Babb is a transducer engineer for Electro-Voice. 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. It would be difficult to have a smooth, controlled speed ride. 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. What does all this mean to the prospective customer?Quite bluntly, it means less distortion under normal conditions and no rude noises when the speaker is overdriven. Another problem common to woofers is that the voice coil of the speaker, like any coil of wire, has an inductance. [. . . ] Would you like to have a CD with the docs on it?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. I try to make them all, gigs permitting. [. . . ]