WLM Aura Manual - User Manual

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WLM Model AURA

Manual

1. Thanks

We thank you for having chosen the WLM reference monitor

AURA

and the confidence

you have thus proven in our product.
Due to the new functioning of the WLM speakers we are asking you to read this manual
carefully before connecting or operating your speakers. Your benefits: an optimized
installation will lead to an improved sound reproduction.

2. Supply

The supply of the AURA loudspeakers comprises:

•

2 AURA - speakers

•

1 aiming gauge (for the positioning of the left/right speakers)

•

This

manual

•

Warranty Registration Form

Note:

the aiming device is separate pack in the main box.

The

packaging

of the cabinets provides a perfect protection to our product during

transportation. We recommend to keep it for future shipping needs.

3. Description

The model AURA is equipped with a built-in filter and can thus be operated in the
"passive" mode (directly connected to your amplifier).

Passive / Active Switching Device

(optional)

With this option the AURA can at any time and easily be up-graded to a fully "active"
speaker system. Via the switching device the signal path will by-pass the built-in filter
located in the rear terminal.

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Note:

The toggle-switches of the Passive / Active Switching Device are secured to

avoid the risk of damage through an inadvertent operation (e.g. when the external filter
has not been installed). Pull the switch out of its notched-in rest position before you can
actually operate it.

In the fully active mode the external WLM filter "SYSTEM CONTROL" is to be
employed.
Due to the risk of damage, never operate the AURA in the active mode without an
external filter system!

Standard

Passive- / Active-Switching Device

(optional)

The solid WBT connector terminals for bi-wiring accept all known loudspeaker cable
ends: bare cables, banana or forked cable shoes.
It is up to your personal preference whether you want to operate your speakers with or
without its front covers. They have little or no effect on the quality of the sound
reproduction.

Please keep in mind that the speakers have a bass reflex opening in the cabinet.
It is vital that the sound waves coming from this aperture should "radiate" freely
to all sides.

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4. Positioning of the Speakers

y will be put to maximum effect only when the

The unique WLM PAC technolog
following rules and guidelines are observed.

The pair of speakers consist of a

LEFT

and

RIGHT

box (seen from the listener's

times the distance of the

position); they differ one from another and should not be switched by mistake. At t
rear terminal the boxes are marked "

left"

and "

right"

The distance between the boxes themselves should be 1.5
boxes to the listener's place.

Example:

supposing that the listener is 3.0 m away from the boxes, then the distance

e, the distance behind the boxes to the rear wall

ore about this below) the clearly noticeable

dge

.1 PAC – Speaker aiming device

between the boxes should be 4.5 m.
For the purpose of a perfect sound stag
should be at least 1.0 m, preferably more. The distance to the side wall should be
considerably less than that (>0.25 m).
Thanks to the WLM PAC-Technology (m
sound stage will built up between the speakers, quite similar to a large blister.
For the final and precise positioning of boxes the aiming device supplied should
employed without fail. Place this device on top of the cabinets (right on the tweeter
assembly) and change its inner gauge block left/right as marked. The marked front e
of the aiming device (gauge block with aiming wedge and main unit) should face the
listener as shown in the drawing below. The boxes are in the right position when the
respective gauge lines are pointing directly at the listener.

Positioning of left box

Positioning of right box

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Distance to rear wall: >1.0 m

Aimin

g Line

Distance to side wall: > 0.25 m

The closer the speakers are placed towards
the center of the room, the better the sound
staging effect will be ( PAC System )

Sound stage due to
the PAC System

Adjustments of the speakers to the listening environment

5. Connection possibilities
5.1 Passive Operation Mode

The AURA speakers are made as standard for the so-called "passive" operation mode,
and thus to be connected directly to the speaker outputs of the integrated amplifier or of
the power amplifier.
By means of the

"TWEETER CONTROL"

(built in the terminal of each speaker as

standard), the upper frequencies of the AURA can be adjusted to the prevailing room
acoustics and according to the individual listening preference.

5.2 Partly active operation mode with WLM "PASSIVE CONTROL“ (optional)

The very useful WLM device

PASSIVE CONTROL

will enable you to operate the

passive AURA speakers in a partly active mode.
The middle and lower frequencies of the signal can be adjusted to the surrounding
environment by an

active

rectification during the reproduction of these frequencies.

A noticeable extension of the lower portion of a signal is the appreciable result.

addition to the adjustment according to room acoustics, it will produce also greater

armth and fullness of sound, besides a clearly improved and well controlled bass

In
w
foundation.

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Note:

When using the PASSIVE CONTROL module with the AURA speakers, choose

the position "PASSIV" of the Passiv-/Aktiv- switch at the speaker terminal.

Different connections of PASSIVE CONTROL

Integrated Amp:

Connection to TAPE IN and TAPE MONITOR OUT of the amp

Integrated amp

Tape

out

Connection between SOURCE and AMP:

Integrated amp

out

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Pre-Amp / Power Amp combination:

Connection between PRE-AMP and POWER AMP

)

Vorstufe (Pre Amp.)

out

Endstufe (Power Amp

Adjustment of the active low frequency rectification:

PASSIVE CONTROL offers an adjustment band width from 0 dB to +12 dB. The
adjustments are continuous (without steps) governed by the prevailing room acoustics,
the type and character of a given recording and the individual listening preference.
In the position

0 dB,

PASSIVE CONTROL is not actively working! In this position the

actual lower frequencies of the passive signal will be reproduced unmodified by the
AURA speakers.
PASSIVE CONTROL offers a choice between

"Full Range“

and

"Sat + Woofer“

mode

(switch).

"Full Range“ operation:

When the AURA speakers are not used in combination with a subwoofer then the "Full
Range“ operation is to be chosen. In this mode the AURA is reproducing the entire
signal band width, also the lower frequencies.

Sat + Woofer“ operation:

his is the right choice when the AURA is operated together with a subwoofer (e.g.

LM DUO). In this mode the signal frequencies are split; the frequencies below 80 Hz

device BASS CONTROL

and an active WLM DUO subwoofer a perfect frequency split can thus be obtained.

T
W
are directed to the subwoofer. In conjunction with the WLM

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Connection of PASSIVE CONTROL + BASS CONTROL

Integrated Amp:

Connection between SOURCE and AMP:

Tape in

Input

Out

Amp. Bass Duo

Integrated amp

out

mp combination:

R AMP

Pre-Amp / Power A

Connection between PRE-AMP and POWE

Endstufe (Power Amp, Bass Duo)

Vorstufe (Pre Amp.)

R in L

out

Endstufe (Power Amp Lyra G.V.)

Passive Control

Bass Control

R in L

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6. Technical Explanations
Speaker Efficiency

The efficiency of a speaker system, measured in sound pressure (dB at 1W, at a
distance of 1 m), specifies its effectiveness of reproducing a given signal. The higher
the efficiency, the lower the demand regarding the performance of an amplifier and the
efforts required to reach higher volume levels.
WLM speakers excel in this respect, since they offer an exceptional and unusual
efficiency of 98 dB (1W, 1m).

6.2 Impulse Behavior

The faster and the more precise a speaker responds to the changes of a signal impulse
(by swinging the membrane forward and backward), the better the sound impression will
be. The smallest delays between the reception of the impulse and its transformation
(initiation of the membrane movement and its stop) will have a distinct impact on the
quality of the sound reproduced and perceived.
The specially hard support of the paper membranes on one side and the extremely
strong, high performance magnet coils on the other side are warrants for an
extraordinary impulse behavior of all WLM speaker systems.

6.5 PAC ("

Phase Acoustic Corrected"

)

nique advantage of the WLM speakers; i.e. the capability

of reproducing an almost perfect sound stage in 3-dimensional extension with 2

t lend

e-like manner it is important that it

urrounding world, usually deriving from single sources,

onsist of a mix of different frequencies and are discerned and located readily in a given

ther hand, our ears have to accomplish the difficult task to

reproduced "artificially" by 2 separate loudspeakers via special

low frequency waves coming from the

ter

ear the

nsion. In addition, the

igher frequencies are traveling so much faster to our ears than the medium or lower

ignal portions. This will result in disturbing time lags over the entire frequency range,

lection of sound, also destroying any chance

PAC stands for a special and u

speakers.
To understand this concept we have to explain that lower frequencies alone do no
themselves and are therefore not vital for the stage building process during the sound
reproduction. Only with higher frequencies stage building (and perception) is possible.
Therefore, to reproduce a given signal in a spac
contains medium and high frequencies together with the lower frequency waves.
The prevailing sounds in our s
c
space context. On the o
amalgamate the sounds
drivers for high and medium/low frequencies to a full space-like entity.
Speakers having conventional tweeter concepts in a variety of techniques are fighting
with the difficulty to fuse the higher and lower frequencies deriving from the 2 stereo
speakers for space-like perception. The high frequency waves conventionally emitted
front direction do not merge with the medium and
same speaker and also not with the high frequencies portions coming from the twee
of the other (stereo) speaker. The listener's ear can not be betrayed, he will h
speakers rather than the music in its appropriate spacious exte
h
s
overemphasizing the distinct 2-channel ref
of a natural, space-like perception of the music reproduced.

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The special execution and positioning of the tweeter system of the WLM speakers is
enabling first the homogenous merging of the high frequencies emerging from the 2
juxtaposed speakers and then also the merging with the medium and low frequenci
a given signal coming from different drivers. The WLM listener is able to hear a dis

es of

tinctly

and

perfect space-

Drivers

PAC – Tweeter-System
8" paper cone chassis

structured sound stage image. No longer is he limited and fixed to a narrowing 2-
channel reproduction of his speakers. In the listener's acoustic perception the WLM-
PAC speakers will actually disappear in the background. He will experience the rare
rewarding feeling of being put right in the middle of the recording atmosphere.
The world unique PAC technology is granting for the first time an almost
like imaging of recorded music from 2 loudspeakers only.

7. Specification: AURA

Impedance 8

Ohm

Frequency Response

35 Hz* to 20kHz (*with Passive Control)

Sensitivity

98 dB - 1m/1W

Recommended Amplifier Power 3,5 to 200 Watt

Wiring Methods

Bi-Wiring

Dimensions

18,90" (480 mm) high
9,00" (230 mm) wide
11,81" (300 mm) deep

Weight

24,10 LB (11 Kg) each

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8. Warra
Limited

During the warranty period the

Wiener Laut

guarantee that their

products are free of flaws and well functioni
The warranty periods for the various products are: Loudspeaker AURA - 5 years,
PASSIVE CONTROL and BASS CONTROL

the date of

urchase at an authorized WLM-Dealer).

ondition for the warranty service is that the products are operated in accordance with

is manual.

uring the warranty period WLM will replace or repair the defect parts free of charge to

e customer.

ondition is however:

•

The warranty registration card is received by WLM within 30 days after the date

of purchase.

•

The cabinets are not showing any traces of physical damage and inside there are

no signs of overheating due to wrong installation/operation resulting in an
overloading of certain parts.

•

The PCBs and components thereof are not showing any signs of undue handling,

regardless whether the intention was to repair or to modify the unit under claim

•

There is no indication what-so-ever that the WLM products have been operated

tly as specified by the manual..

omer will loose his right for a warranty claim when the serial-Nr. of

rom repairs executed by un-authorized

During the duration of this limited warranty period (and there-after) WLM will not be

the basis of this limited warranty claim the repair or replacement

f the defective part by the manufacturer or the authorized dealer with no charge to him.

For e

After receipt of the claim confirmation please send the unit under claim to the shown
address. The defect will be examined and, when justified, will be repaired at no cost to
the
corres

t the

addres

ill be accepted or processed.

WLM L
Treiets
A-6 2
AUSTR

hone: +43 (0)5522 44641 (Customer Service)

nty

Warranty

sprecher Manufaktur

will

- 2 years (counted from

p
C
th
D
th
C

differen

In addition, the cust
the unit in question has been modified, removed or manipulated in any way. WLM will
not be held responsible for damages resulting f
personnel.

Collateral Damage

responsible for collateral damage, directly or indirectly linked to the operation of the
WLM product

Warranty claim

The customer may on
o

th claim please contact either WLM directly or the WLM distributor in your country.

customer. The customer will have to bear the cost of shipment. Without a

ponding warranty claim (received within 30 days after the date of purchase a

s below) no warranty claim w

oudspeakers

trasse 56

83 Sulz

P
Web:

www.wlm-loudspeakers.com

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WLM Warranty Registration

sk your dealer to fill in this form at the time of the purchase.

Customer Service:

Please a

This registration will entitle you to call on WLM for technical support and it
a prerequisite for an eventual warranty claim against WLM.

Please send your
registration to:

WLM Loudspeakers
Treietstrasse 56
A-6832 Sulz
Austria

Phone : +43 (0)5522 44641
Fax : +43 (0)5522 44641-74
Web :

www.wlm-loudspeakers.com

Unit/Model:

AURA

...........................Serial-Nr.:..........................................................

Unit/Model:

PASSIVE CONTROL

…Serial-Nr.:..........................................................

Unit/Model:

BASS CONTROL

……..Serial-Nr.:..........................................................

Date of Purchase:.............................Dealer Name:....................................................
Dealer Address:..........................................................................................................

First/last name of customer: ...................................................................................
Address Street:

...................................................................................

Postal Code/Town: ...….............................................................................

Customer Contact Phone: ...................................................................................

Fax: ...................................................................................
E-Mail: ...................................................................................

Your comments are always appreciated:

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