Electro-Voice VARIPLEX II XL EDS User Manual

Systems

R

VariplexTM-XL

3-Way Screen System

· THX® approved*

· Patented high-frequency system

· Vari-Intense Technology for

smooth, even coverage

· Compact design for use in large

to small rooms

TM

TM

)

· Ring Mode Decoupling(RMD
provides greater Intelligiblity

· Digital Dynamics Capable

· Factory pre-assembled mid/high
unit

Description

The Electro-Voice Variplex

TM

-XL is de­signed specifically for use in ultra-high-fi­delity cinema applications. The system is

®

THX

approved* and offers Electro-Voice

patented technologies. The V ariplex

TM

-XL is
a full three-way configuration that addresses
many performance issues not addressed in
other three-way designs. The V ariplex
employs ElectroVoice’s patented

TM

-XL

2

Vari In­tense- (VI) variable-intensity low distortion
horn system. This design offers two funda­mental advantages. The variable horn throat
impedance provides uniform sound pressure
levels over the entire auditorium. Conven­tional horn systems attempt to do the same
by aiming the center of the high-frequency/
mid-frequency horn toward the rear of the
room. This conventional approach wastes
fully one-half of the system energy and head­room, and radiates that wasted energy onto
the ceiling and walls, thus producing reflec­tions that further degrade overall intelligi­bility and system clarity. The patented vari­able- intensity approach, on the other hand,
compensates for the natural phenomenon of
sound reduction with distance and produces

______________________

1

THX is a registered trademake of Lucasfilm Ltd.

* The Variplex-XL is THX approved for, screen to last row
distances, greater than 80 feet

2

U.S. Patent 5,020,630, Loudspeakers & Horn Therefor.

extremely uniform coverage for the entire
seating area. The same level of fidelity in
the front, middle and the back of the room is
achieved while substantially reducing re­flected energy and consequently greatly im­proving tonal quality and intelligibility. The
advantages are twice the headroom and
greatly improved fidelity.

The Variplex

TM

-XL is also unique in that its
three-way design utilizes a bass/mid-bass/
high-frequency approach rather than a con­ventional bass mid-range/high-frequency
design. This mid-bass/high-frequency ap­proach produces superior vocal clarity. Also
incorporated into the Variplex
Electro-Voice’s RMD

TM

RMD

,or Ring Mode Decoupling, employ-

TM

TM

-XL is

technology.

ees mechanical and acoustical equaliza­tion to resolve system resonances (or ring­ing modes) and frees electrical equalizers to
perform the job they were originally intended
to perform, that being room equalization and
correction of the spectral characteristics
inherent in the tranducers themselves. Prior
designs have frequently attempted to "re­solve” loudspeaker design issues with elec­trical equalizers. RMD

TM

substantially im-

proves system transient detail and further

refines system clarity.
The unique performance enhancements and
system capabilities are ideally suited to the
high dynamic-range demands of digital ma­terial. When the pre-assembled HPK­Variplex

Electro-Voice’s THX

TM

-XL is used in conjunction with

®

approved
subwoofers, the combination defines a new
standard for realism and total system accu­racy.

Low Frequency Assembly Instructions

Refer to Figures l and 2 for the following
The Low Frequency Unit comes shipped as
two pieces (2-TL606MXL's).

1. Turn one of the low frequency units up­side down and the other is right side up, ar­range as illustrated in figure 1.

2. Remove the isolation gasket stips from the
low frequency accesory bag (shipped with
the HPK-V ariplex

TM

-XL. Attach the strips to

the up-side down speaker as shown in figure 1.

3. Remove the locking brace the low fre­quency acessory bag and attach it to the back
of the unit right side up.

V ariple x™- XL 3- Way Screen System

Figure 1—Low Frequency Speaker
Assembly

Variplex™ XL 3-Way Screen System

V ariple x™-XL 3-W ay Screen System

Figure 2—Low Frequency Wiring
Configuration

4. Slide to two units together, with the backs
almost touching and the front slightly appart.
Engage the brace to the other speaker and
tighten the bolt. Pull the front of the units
together. Pass the 1/4-20 x 1 1/2 inch bolts
through the holes opposite the T-nuts in each
of the enclosures front baffle inside edge.
(see figure 1) Tighten bolts unitl a 1/16 inch
remains between the two enclosures.

5. Now that the Low frequency units are at­tached, the input panels can be connected.
(See Figure 2 for referance) There are three
wiring configurations possible. The speak­ers maybe wired in Series with one amp
channel input or wired in Parallel with one
amp channel input. Finally they may be
wired seperately, each speaker on one amp
channel. (NOTE: Use red jumper plugs

but, do not us wire jumpers between J1
and J2 when using this particular configu­ration.)
Series wiring configuration: Connect J1 to

J1 and J2 to J2, using supplied wire jumper.

Select the supplied white jumper plug and
the yellow jumper plug. The white jumper
plug is to be installed on the speaker which
has T1 and T2 connected to the amplifier
source. The yellow jumper is installed on the
other speaker, for a nominal impedance of
12 ohms.
Parallel wiring configuration: Connect J1
to J1 and J2 to J2, using supplied wire
jumper. Select the two supplied red jumper
plugs and install one in each of the input
panels.
The amplifier source may be connected to
either input panel at T1 and T2, for a nomi­nal impedance of 2.8 ohms.

Seperate wiring configuration: Do not con-
nect J1 to J1 amd J2 to J2. Select the two

supplied red jumper plugs and install one in
each of the input panels. The individual am­plifier channels may be connected to each
of the input panels at T1 and T2 for indivdual
nominal impedances of 6 ohms.

Variplex™ XL 3-Way Screen System