Xds

X-Array™ Double

Subwoofer System

•Unprecedented acoustic output in a small, lightweight package

•Ring Mode Decoupling (RMD)™ provides accurate transient detail

•EVX-180B woofers

•Enclosure shell matches two full- size X-Array™ systems

•Optimized for maximum subwoofer -frequency acoustic output

Description

The X-Array™product line represents im- portant advancements in concert-sound-rein- forcement technology. The design goals called for the highest acoustic output capa- bility with the highest fidelity in lightweight, compact enclosures that were easy to array. The development began with a clean sheet of paper and took an integrated approach. The individual loudspeaker drivers, horns, enclosures, rigging hardware and system configurations were designed from the ground up specifically for this high-perfor- mance application.

The Xds is a manifolded, vented-box sub- woofer system utilizing two 457-mm (18-in.) woofers in the double-wide X-Array™enclo- sure shell. The enclosure has been optimized for maximum subwoofer-frequency output. The two woofers face each other in a mani- fold chamber at the center of the enclosure. This manifolding technique (U.S. Patent Number 4,733,749) increases the acoustic loading, resulting in increased low-fre- quency efficiency (at slightly above box tun- ing) and reduced distortion compared to conventional direct-radiating designs. The woofers were designed as part of the Xds development and represent a step forward in state-of-the-art loudspeaker design in

terms of high acoustic output with low dis- tortion and low power compression. Electro-Voice engineers developed a new technology dubbed Ring Mode Decoupling (RMD™) to substantially improve clarity and intelligibility by reducing both linear and nonlinear resonance modes that color the sound.

The low-frequency driver in the Xds is the EVX-180B. An improved version of the in- dustry-standard EVX-180A high-excursion 467-mm (18-in.) woofer that has distin- guished itself as an industry standard for high-power, low-frequency reproduction. During the X-Array™development, the ther- mal conduction of the motor was improved and the suspension was redesigned, giving the EVX-180B even lower power compres- sion and a longer mechanical lifetime. In the Xds, the woofers are manifolded in a vented enclosure optimized for maximized sub- woofer output from 30-160 Hz with mini- mized distortion.

Ring Mode Decoupling, (RMD™), is a tech- nique utilized and named by Electro-Voice to describe a process used to improve sound quality in loudspeaker systems. RMD™ of- fers a solution to a very fundamental prob- lem. It has long been recognized that two different loudspeaker systems can sound dif- ferent even though they both may be equal-

ized to have the same frequency response. This difference is due to a variety of reso- nances, or ring modes that color the sound. Although this ringing may be very low in level compared to the program material, it is still audible. The source of these resonances may be mechanical or acoustical in nature, or a combination of both. In addition, they may be linear or nonlinear, resulting in their character changing with level. Furthermore, these Ring Modes may be aggravated when multiple loudspeaker enclosures are as- sembled into arrays. The result is a colora- tion that decreases intelligibility and clarity, with the nature of that coloration varying with level. Often, the listener perceives that coloration as imbalance in the frequency re- sponse, and will attempt to electronically adjust the system to restore the spectral bal- ance. However this electronic equalization has the negative effect of changing the pro- gram material itself.

Ring Mode Decoupling (RMD™) addresses mechanical resonances with mechanical so- lutions, and acoustical resonances with acoustical solutions. In the Xds development, RMD™ was applied at every level – to the individual low-frequency drivers, the low- frequency enclosure chambers and the inter- action between multiple enclosures. The de- sign process included, for example, the driver

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Electro-Voice Speaker manual Xds, Description
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Speaker specifications

Electro-Voice, a prominent name in audio equipment, has long been a trusted brand among sound professionals and enthusiasts alike. The Electro-Voice speaker lineup encompasses a diverse range of models that cater to different audio needs, from live sound reinforcement to permanent installations and home audio systems.

One of the standout features of Electro-Voice speakers is their remarkable sound quality. The brand is known for its commitment to delivering clear, powerful audio across a wide frequency range. Many models incorporate advanced transducer technology, which ensures that highs are crisp, mids are warm, and lows are deep and resonant. This attention to detail translates into a listening experience that remains faithful to the original sound source.

Electro-Voice speakers often integrate innovative technologies that enhance performance and versatility. For instance, many of their speakers utilize advanced digital signal processing (DSP) capabilities. This feature allows for precise tuning and optimization of audio output, enabling users to adapt sound profiles to match specific environments or preferences. The result is a more balanced tonal quality that performs well in various settings, from small venues to large concert halls.

Durability is another hallmark of Electro-Voice speakers. Constructed with high-quality materials, they are designed to withstand the rigors of live performances without compromising sound integrity. Many models come with rugged enclosures and protective grilles, making them suitable for both indoor and outdoor use. This robustness ensures that they can handle substantial power levels and maintain performance even in challenging conditions.

In addition to performance and durability, Electro-Voice emphasizes user-friendly design. Often featuring lightweight and portable configurations, these speakers are easy to transport and set up. Many models also offer versatile mounting options, allowing for flexible deployment in various configurations, whether used as a standalone unit or part of a larger audio system.

Electro-Voice has also embraced connectivity options, with many of their speakers now offering wireless capabilities. This adds a layer of convenience, allowing for more dynamic setups without the clutter of cables. Additionally, integration with modern audio systems is facilitated by features like Bluetooth connectivity, enabling seamless streaming from smartphones, tablets, and other devices.

In summary, Electro-Voice speakers exemplify a fusion of sound quality, innovative technology, and durability, making them ideal for a range of applications. Whether used in professional audio setups or home entertainment systems, these speakers consistently deliver performance that meets the high standards set by audio professionals. With a commitment to excellence, Electro-Voice continues to be a leading choice for anyone seeking reliable and powerful audio solutions.
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