Full Text Searchable PDF User Manual
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
he
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 "
L
left"
and "
R
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
be
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.
4
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
in
out
CD
Connection between SOURCE and AMP:
Integrated amp
CD
in
out
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Pre-Amp / Power Amp combination:
Connection between PRE-AMP and POWER AMP
)
Vorstufe (Pre Amp.)
in
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:
CD
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
L
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
in
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
ng
- 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
IA
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.
is
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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