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Scenario
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SC E N A R I OTM
u s e r ’ s m a n u a l
c l s e l e c t r o s t a t i c
M LA R T I N O G A N
2 Contents
CONTENTS
Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Installation in Brief . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
AC Power Connection
Signal Connection
Break-In
Placement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Listening Position
The Wall Behind the Listener
The Wall Behind the Speakers
The Side Walls
Experimentation
Final Placement
The Extra “Tweak”
Enjoy Yourself
Room Acoustics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Your Room
Terminology
Rules of Thumb
Dipolar Speakers and Your Room
Solid Footing
Dispersion Interactions . . . . . . . . . . . . . . . . . . . . . . . . .10
Controlled Horizontal Dispersion
Controlled Vertical Dispersion
Three Major Types of Dispersion
Home Theater . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Electrostatic Advantages . . . . . . . . . . . . . . . . . . . . . . . .13
Full Range Operation
MartinLogan Exclusives . . . . . . . . . . . . . . . . . . . . . . . . .15
Curvilinear Line Source
Vapor Deposited Film
Transducer Integrity
Electrostatic Loudspeaker History . . . . . . . . . . . . . . . .16
Frequently Asked Questions . . . . . . . . . . . . . . . . . . . . .18
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
General Information . . . . . . . . . . . . . . . . . . . . . . . . . . .21
Specifications
Warranty and Registration
Service
Glossary of Audio Terms . . . . . . . . . . . . . . . . . . . . . . . .22
3Installation in Brief 3
INSTALLATION IN RIEFB
We know you are eager to hear your new Scenario loud-
speakers, so this section is provided to allow fast and easy
set up. Once you have them operational, please take the time
to read, in depth, the rest of the information in this manu-
al. It will give you perspective on how to attain the greatest
possible performance from this most exacting transducer.
If you should experience any difficulties in the setup or
operation of your Scenario speakers, please refer to the Room
Acoustics, Placement or Operation sections of this manual.
Should you encounter a persistent problem that cannot be
resolved, please contact your authorized MartinLogan
dealer. They will provide you with the appropriate technical
analysis to alleviate the situation.
WARNING!
•Hazardous voltages exist inside—do not
remove cover
•Refer servicing to a qualified technician
•To prevent fire or shock hazard, do not
expose this module to moisture
•Turn amplifier off and unplug speaker
should any abnormal conditions occur
•Do not operate if there is any visual
damage to the electrostatic panel element
•Do not over drive speaker beyond its rated power
Step 1: Unpacking
Remove your new Scenario speakers from their packing.
Step 2: Placement
Place each Scenario at least two feet from any wall and angle
them slightly toward your listening area. This is a good
place to start. Please see the Placement section (pages 6–7)
of this manual for more details.
Step 3: Power Connection (AC) (see warning)
MartinLogan speakers require AC power to energize their
electrostatic cells. Using the AC power cords provided,
plug them in
first to the AC power receptacle on the rear
panel of the speaker
, making sure that you have made a
firm
connection, and then to the wall outlet. Please see the
Operations section (pages 5) of this manual for more details.
Step 4: Signal Connection
Use the best speaker cables you can. Higher quality cables,
available from your specialty dealer, are recommended
and will give you superior performance. Spade connectors
are suggested for optimum contact.
Attach your speaker cables to the Signal Input section on
the rear panel. Be consistent when connecting speaker
leads to the terminals on the back of the Scenario: take great
care to assign the same color to the (+) terminal on both
the left and right channels. If bass is nonexistent and you
cannot discern a tight, coherent image, you may need
to reverse the (+) and (-) leads on one side to bring the
system into proper polarity.
Step 5: Listen and Enjoy
Now, you may turn on your system and enjoy!
The lightning bolt flash with arrowhead symbol, within
an equilateral triangle, is intended to alert the user to
the presence of uninsulated “dangerous voltage” within the
product’s enclosure that may be of sufficient magnitude
to constitute a risk of electric shock.
The exclamation point within an equilateral triangle is
intended to alert the user to the presence of important
operating and maintenance (servicing) instructions in
the literature accompanying the appliance.
4 Introduction
INTRODUCTION
Congratulations! You have invested in one of the world’s
premier loudspeaker systems.
The MartinLogan Scenario represents the culmination of an
intensive, dedicated group research program directed
toward establishing a world class reference monitor
utilizing leading-edge technology, without compromising
durability, reliability, craftsmanship or aesthetic design.
The result of cumulative technology gleaned from previous
research and development projects, the Scenario represents
the latest developments in electrostatic and hybrid loud-
speaker technology.
Combining our proprietary curvilinear electrostatic trans-
ducer with a compact, but powerful woofer, the Scenario
allows you to hear the ultimate in sound reproduction
anywhere you want. The Scenario reproduces music and
movie soundtracks with uncompromised electrostatic clarity
and surprising bass, all enclosed in the smallest electrostatic
package available in the world today.
The materials in your new Scenario speakers are of the highest
quality and will provide years of enduring enjoyment and
deepening respect. The cabinetry is constructed from the
highest quality composite material for acoustical integrity and
is finished with our attractive custom matte finish.
Through rigorous testing, the curvilinear electrostatic panel
has proven itself to be one of the most durable and reliable
transducers available today. Fabricated from a custom tool
punched high-grade steel, the patented panel is then coated
with a special polymer that is applied via a proprietary electrostatic
deposition process. This panel assembly houses a membrane
just 0.0005 of an inch thick. Ruggedly constructed and
insulated, as much as 200 watts of continuous power has
driven the Scenario’s energized diaphragm into massive
excursions with no deleterious effects.
The other sections of your User’s Manual will explain
in detail the operation of your Scenario speakers and the
philosophy applied to their design. A clear understanding
of your speakers will insure that you obtain maximum per-
formance and pleasure from this most exacting transducer.
It has been designed and constructed to give you years of
trouble-free listening enjoyment.
OPERATION
Operation 5
Because your MartinLogan Scenario’s use an internal power
supply to energize their electrostatic cells with high-voltage DC,
they must be connected to an AC power source.
For this reason they are provided with the proper IEC standard
power cords. These cords should be firmly inserted into the AC
power receptacles on the rear connection panel of the speakers,
then to any convenient AC wall outlet. The Scenario’s integrate
a signal sensing power supply which will switch off after a few
minutes of no music signal, and requires less than two seconds
to recharge the panels when a music signal is present.
Your Scenario speakers are wired for the power service
supplied in the country of original consumer sale. The AC
power rating applicable to a particular unit is specified
both on the packing carton and on the serial number
plate attached to the speaker.
If you remove your Scenario speakers from the country
of original sale, be certain that AC power supplied in any
subsequent location is suitable before connecting and
operating the speakers. Substantially impaired performance
or severe damage may occur to an Scenario speaker if
operation is attempted from an incorrect AC power source.
WARNING! The power cord should not be installed,
removed, or left detached from the speaker while
the other end is connected to an AC power source.
Signal Connection
Use the best speaker cables you can. The length and type of
speaker cable used in your system will have an audible
effect. Under no circumstance should a wire of gauge higher
(thinner) than #16 be used. In general, the longer the length
used, the greater the necessity of a lower gauge, and the
lower the gauge, the better the sound, with diminishing
returns setting in around #8 to #12.
A variety of speaker cables are now available whose
manufacturers claim better performance over standard heavy
gauge wire. We have verified this in many cases, and the
improvements available are often more noticeable than the
differences between wires of different gauge. The effects of
cables may be masked if the equipment is not the highest quality.
We also recommend, if possible, that short runs of speaker
cable connect the power amplifier(s) and speakers and that
high quality long interconnect cables be used to connect
the preamplifier and power amplifier. This results in the
power amplifiers being close to the speakers, which may
be practically or cosmetically difficult, but if the length of
the speaker cables can be reduced to a few meters, sonic
advantages may be obtained.
Connections are done at the Signal Input section on the
rear electronics panel of the Scenario. Use spade connectors
for optimum contact and ease of installation. Make certain
that all of your connections are tight. Be consistent when
connecting the speaker cables to the Signal Input terminals.
Take care to assign the same color cable lead to the (+) ter-
minal on both the left and right channel speakers. If bass is
nonexistent and you cannot discern a tight, coherent image,
you may need to reverse the (+) and (-) leads on one speaker
to bring the system into proper polarity. (See figure 1)
WARNING! Turn your amplifier off before making
or breaking any signal connections!
Break-In
When you first begin to play your Scenario speakers, they will
sound a bit bass shy. This is due to the high-quality, long-
life components used in our woofer. Our custom made,
butyl surround woofer requires 30 hours of break-in at 90
dB (moderate listening levels) before any critical listening.
The break-in requirements of the crossover components
(and, to a lesser degree, the stator) are equivalent.
The pressure compensation panel on the back of the stator
panel is a passive tone-shaping device that improves tonal
balance and increases dispersion without sacrificing efficiency.
Please do not remove or reposition these panels in pursuit of
higher hi-fi as their size and placement are crucial to the
Scenario performance.
AC Power Connection
Figure 1. Single-Wire Connection. One Channel shown.
SC E N A R I OTM
Loudspeaker
Amplifier
speaker output
Signal
Input
6 Placement
PLACEMENT
By now your speakers should be placed approximately
two to three feet from the front wall, the wall in front of
the listening position, and at least one to two feet from
the side walls. Your sitting distance should be further
than the distance between the speakers themselves. What you
are trying to attain is the impression of good center imaging
and stage width.
There is no exact distance between speakers and listener,
but there is a relationship. In long rooms, naturally, that
relationship changes. The distance between the speakers
will be far less than the distance from you to the speaker
system. However, in a wide room, you will still find that if
the distance from the listener to the speakers becomes
smaller than the distance between the speakers themselves,
the image will no longer focus in the center.
Now that you have positioned your speaker system, spend
some time listening. Wait to make any major changes in
your initial setup for the next few days as the speaker
system itself will change subtly in its sound. Over the first
40 hours of play the actual tonal quality will change slightly
with deeper bass and more spacious highs resulting.
After a few days of listening you can begin to make refinements
and hear the differences of those refinements.
The Wall Behind the Listener
Near-field reflections can also occur from your back wall
(the wall behind the listening position). If your listening
position is close to the back wall, these reflections can
cause problems and confuse the quality of imaging.
Actually it is better for the wall behind you to be soft
than to be bright. If you have a hard back wall and your
listening position is close to it, experiment with devices
that will soften and absorb information (i.e. wall hangings
and possibly even sound absorbing panels).
The Wall Behind the Speakers
The front surface, the wall behind your speakers, should not
be extremely hard or soft. For instance, a pane of glass
will cause reflections, brightness and confused imaging.
Curtains, drapery and objects such as bookshelves can
be placed along the wall to soften a hard surface. A standard
sheet rock or textured wall is generally an adequate
surface if the rest of the room is not too bright and hard.
Sometimes walls can be too soft. If the entire front wall
consists of only heavy drapery, your system can sound too
soft or dull. You may hear dull, muted music with little
ambience. Harder room surfaces will actually help in this case.
The front surface should, optimally, be one long wall
without any doors or openings. If you have openings, the
reflection and bass characteristics from one channel to the
other can be different.
The Side Walls
The same requirements exist for side walls. Additionally, a
good rule of thumb is to have the side walls as far away
from the speaker sides as possible, minimizing near-field
side wall reflections. Sometimes, if the system is bright or
the imaging is not to your liking, and the side walls are
very near, try putting curtains or softening material directly
to the edge of each speaker. An ideal side wall, however,
is no side wall at all.
Experimentation
Toe-in
Now you can begin to experiment. First begin by toeing
your speakers in towards the listening area and then facing
them straight into the room. You will notice that the tonal
balance changes slightly. You will also notice the imaging
changing. Generally it is found that the ideal listening
position is with the speakers slightly toed-in so that you are
listening to the inner third of the curved transducer section.
Experimenting with the toe-in will help in terms of tonal
balance. You will notice that as the speakers are toed-out,
the system becomes slightly brighter than when toed-in.
This design gives you the flexibility to compensate for a
soft or bright room.
Tilting the Speakers Backwards and Forwards
As can be seen from the diagrams in the Room Acoustics
section of this manual, the vertical dispersion is directional
above and below the stator panel itself. In some instances, if
you are sitting close to the floor, slight forward tilting of the
speakers can enhance clarity and precision.
Listening Position
8 Room Acoustics
This is one of those areas that requires both a little back-
ground to understand and some time and experimentation
to attain the best performance from your system.
Your room is actually a component and an important part
of your system. This component is a very large variable
and can dramatically add to, or subtract from, a great
musical experience.
All sound is composed of waves. Each note has its own
wave size, with the lower bass notes literally encompassing
from 10’ feet to as much as 40’ feet. Your room participates
in this wave experience like a three dimensional pool with
waves reflecting and becoming enhanced depending on
the size of the room and the types of surfaces in the room.
Remember, your audio system can literally generate all of
the information required to recreate a musical event in
time, space, and tonal balance. The purpose of your room,
ideally, is to not contribute to that information. However,
every room does contribute to the sound, and the better
speaker manufacturers have designed their systems to
accommodate this phenomenon.
Let’s talk about a few important terms before we begin.
Terminology
Standing Waves
The parallel walls in your room will reinforce certain notes to
the point that they will sound louder than the rest of the audio
spectrum and cause “one note bass”, “boomy bass” or
“tubby bass”. For instance, 100Hz represents a 10’ feet
wavelength. Your room will reinforce that specific frequency
if one of the dominant dimensions is 10’ feet. Large objects
in the room such as cabinetry or furniture can help to minimize
this potential problem. Some serious “audiophiles” will literally
build a special room with no parallel walls just to help
eliminate this phenomenon.
Reflective Surfaces (near-field reflections)
The hard surfaces of your room, particularly if close to your
speaker system, will reflect some waves back into the room
over and over again, confusing the clarity and imaging of
your system. The smaller sound waves are mostly affected
here, and occur in the mid and high frequencies. This is
where voice and frequencies as high as the cymbals occur.
Resonant Surfaces and Objects
All of the surfaces and objects in your room are subject to
the frequencies generated by your system. Much like an
instrument, they will vibrate and “carry on” in syncopation
with the music, and contribute in a negative way to the
music. Ringing, boominess, and even brightness can occur
simply because they are “singing along” with your music.
Resonant Cavities
Small alcoves or closet type areas in your room can be
chambers that create their own “standing waves” and can
drum their own “one note” sounds.
Clap your hands. Can you hear an instant echo respond back?
You have near-field reflections. Stomp your foot on the floor.
Can you hear a “boom”? You have standing waves or large
panel resonances such as a poorly supported wall. Put your
head in a small cavity area and talk loudly. Can you hear a
booming? You’ve just experienced a cavity resonance.
Rules of Thumb
Hard vs. Soft Surfaces
If the front or back wall of your listening room is soft, it
might benefit you to have a hard or reflective wall in
opposition. The ceiling and floor should follow the same
basic guideline as well. However, the side walls should be
roughly the same in order to deliver a focused image.
This rule suggests that a little reflection is good. As a matter
of fact, some rooms can be so “over damped” with carpeting,
drapes and sound absorbers that the music system can
sound dull and lifeless. On the other hand, rooms can be
so hard that the system can sound like a gymnasium with
too much reflection and brightness. The point is that balance
is the optimum environment.
Breakup Objects
Objects with complex shapes, such as bookshelves, cabinetry
and multiple shaped walls can help break up those sonic
gremlins and diffuse any dominant frequencies.
Solid Coupling
Your loudspeaker system generates frequency vibrations
or waves into the room. This is how it creates sound.
Those vibrations will vary from 20 per second to 20,000
per second. If your speaker system is not securely planted
R AOOM COUSTICS
Your Room
Dispersion Interactions 11
Figure 8– 9. As can be seen here, point source
concepts invite a great deal of room interaction.
While delivering good frequency response to a
large listening audience, imaging is consequently
confused and blurred.
Figure 10–11. Even though they suffer from
“venetian blind” effect, angled multiple panel
speakers can deliver good imaging, but only
to specific spots in the listening area.
Figure 11–12. A controlled 30-degree cylindrical
wave-front, which is a MartinLogan exclusive,
offers optimal sound distribution with minimal
room interaction. The result is solid imaging with
a wide listening area.
Produktspecifikationer
| Varumärke: | Martin Logan |
| Kategori: | Inte kategoriserad |
| Modell: | Scenario |
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