Electro-voice XI-2181 Bedienungsanleitung PDF herunterladen

Xi-2181/2181F

X-Array™ Install

Bass System

• Unprecedented acoustic output in

a small, lightweight package

• Ring-Mode Decoupling (RMD)™

provides accurate transient detail

• EVX-180B woofers

• Unique rear-hinge rigging

• Flying and non flying configuration

Description

The X-Array

Install™ product line repre-

sents important advancements in concert-

sound-reinforcement technology. The design

goals called for the highest acoustic output

capability with the highest fidelity in light-

weight, compact enclosures that were easy

to array. The development began with a clean

sheet of paper and took an integrated ap-

proach. The individual loudspeaker drivers,

horns, enclosures, rigging hardware and sys-

tem configurations were designed from the

ground up specifically for this high-perfor-

mance application.

The Xi-2181 is a manifolded, vented-box

bass system utilizing two 457-mm (18-in.)

woofers. The two woofers face each other

in a manifold 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-

frequency efficiency (at slightly above box

tuning) and reduced distortion compared to

conventional direct-radiating designs. The

woofers were designed as part of the Xi-2181

development and represent a step forward

in state-of-the-art loudspeaker design in

terms of high acoustic output with low

distortion 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 Xi-2181 is

the EVX-180B. An improved version of the

industry-standard EVX-180A high-excur-

sion 467-mm (18-in.) woofer that has dis-

tinguished 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

Xi-2181, the woofers are manifolded in a

vented enclosure optimized for maximized

output from 37-160 Hz with minimized dis-

tortion.

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

solutions, and acoustical resonances with

acoustical solutions. In the Xi-2181 devel-

opment, RMD

™

was applied at every level –

to the individual low-frequency drivers, the

low-frequency enclosure chambers and the

interaction between multiple enclosures. The

design process included, for example, the

driver cone, suspension geometry and mate-

rials, enclosure geometry and materials, ab-

sorptive materials, etc. The result is a dra-

matic improvement in clarity and with a

much more neutral sound (a lack of colora-

tion) with the loudspeaker system maintain-

1 2 3 4 5 6 7 8

Xi-2181/2181F 1
Xi-2181 Bass System 2

Inhaltsverzeichnis

Seite 1 - Xi-2181/2181F

Xi-2181/2181FX-Array™ InstallBass System• Unprecedented acoustic output ina small, lightweight package• Ring-Mode Decoupling (RMD)™provides accurate t

Seite 2 - Xi-2181 Bass System

Xi-2181 Bass SystemXi-2181 Bass System2ing its sonic integrity from the very-lowestsound pressure levels to the very-highestsound pressure levels. Thi

Seite 3

Xi-2181 Bass SystemXi-2181 Bass System3quickly, and offers such flexibility in thevertical angling of cabinets that pull-uppoints are usually unnecess

Seite 4

Xi-2181 Bass SystemXi-2181 Bass System4VerticalHorizontal5 dB per divisionXi-2181 Bass System63 Hz80 Hz125 Hz200 Hz160 Hz100 Hztro-Voice shall not be

Seite 5

Xi-2181 Bass SystemXi-2181 Bass System5Xi-2181 Bass SystemDIRECTIVITY FACTOR Rθ QWithout Crossover and EQWith Crossover and EQFigure 4 — DirectivityTh

Seite 6

Xi-2181 Bass SystemXi-2181 Bass System6Figure 7 — Wiring DiagramThe wiring diagram of each frequency bandof the Xi is shown.Figure 6 — ImpedanceThe i

Seite 7

Xi-2181 Bass SystemXi-2181 Bass System7Figure 8—Dimensions

Seite 8

Xi-2181 Bass SystemXi-2181 Bass System8600 Cecil Street, Buchanan, MI 49107616/695-6831, 616/695-1304 FaxSpecificationsFrequency Response (measured in

Verwandte Modelle: 2181F

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Electro-voice XI-2181 Bedienungsanleitung

Stöbern Sie online oder laden Sie Bedienungsanleitung nach Zubehör für Musik Electro-voice XI-2181 herunter. Electro-Voice XI-2181 User Manual Benutzerhandbuch

Inhaltsverzeichnis

Verwandte Modelle: 2181F

Kommentare zu diesen Handbüchern