Instrukcja obsługi MartinLogan Loudspeaker Systems

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TM
SCENARIO
user ’s manual
c l s e l e c t r o s t a t i c
MARTIN LOGAN

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CONTENTS Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 Dispersion Interactions . . . . . . . . . . . . . . . . . . . . . . . . .10 Installation in Brief . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 Controlled Horizontal Dispersion Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 Controlled Vertical Dispersion Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 Three Major Typ

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INSTALLATION IN BRIEF We know you are eager to hear your new Scenario loud- Step 1: Unpacking speakers, so this section is provided to allow fast and easy Remove your new Scenario speakers from their packing. set up. Once you have them operational, please take the time to read, in depth, the rest of the information in this manu- Step 2: Placement al. It will give you perspective on how to attain the greatest Place each Scenario at least two feet from any wall and angle possible performance from

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INTRODUCTION Congratulations! You have invested in one of the world’s Through rigorous testing, the curvilinear electrostatic panel premier loudspeaker systems. has proven itself to be one of the most durable and reliable transducers available today. Fabricated from a custom tool The MartinLogan Scenario represents the culmination of an punched high-grade steel, the patented panel is then coated intensive, dedicated group research program directed with a special polymer that is applied via a pro

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OPERATION AC Power Connection the preamplifier and power amplifier. This results in the Because your MartinLogan Scenario’s use an internal power power amplifiers being close to the speakers, which may supply to energize their electrostatic cells with high-voltage DC, be practically or cosmetically difficult, but if the length of they must be connected to an AC power source. the speaker cables can be reduced to a few meters, sonic For this reason they are provided with the proper IEC standard ad

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PLACEMENT Listening Position By now your speakers should be placed approximately sheet rock or textured wall is generally an adequate two to three feet from the front wall, the wall in front of surface if the rest of the room is not too bright and hard. the listening position, and at least one to two feet from Sometimes walls can be too soft. If the entire front wall the side walls. Your sitting distance should be further consists of only heavy drapery, your system can sound too than the distanc

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Your ideal listening position and speaker position will Imaging be determined by: In their final location, your Scenario’s should have a stage •Tightness and extension of bass response width somewhat wider than the speakers themselves. On well •Width of the stage recorded music, the instruments should extend beyond •Pinpoint focusing of imaging the edges of each speaker to the left and to the right, yet a Once you have determined the best of all three of these vocalist should appear directly in

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ROOM ACOUSTICS Your Room Resonant Surfaces and Objects This is one of those areas that requires both a little back- All of the surfaces and objects in your room are subject to ground to understand and some time and experimentation the frequencies generated by your system. Much like an to attain the best performance from your system. instrument, they will vibrate and “carry on” in syncopation with the music, and contribute in a negative way to the Your room is actually a component and an importan

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Solid Footing After living and experimenting with your Scenario’s, you may on the floor or solid surface, it can shake as it produces want to use ETC (Energy Transfer Coupler) Spikes (See sound and, consequently, the sound can be compromised. Figure 5), which are available from your local MartinLogan If your speaker is sitting on the carpet and only foot gliders dealer or on our website at www.martinlogan.com. With the are used, the bass can be ill defined and even boomy. The use of these spikes

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DISPERSION INTERACTIONS Controlled Horizontal Dispersion Three Major Types of Dispersion In the field of loudspeaker design, it is a known fact that as Your Scenario’s launch a 30 degree dispersion pattern when the sound wave becomes progressively smaller than the viewed from above. This horizontal dispersion field gives a transducer producing it, the dispersion of that wave choice of good seats for the performance while minimizing becomes more and more narrow, or directional. This fact interact

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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 s

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HOME THEATER It had long been the practice of stereo buffs to connect their Surround Speakers. television to the stereo system. The advantage was the use We recommend that the surround speakers play down of the larger speakers and more powerful amplifier of the to 80 Hz or below. The surround speakers contain the stereo system. Even though the sound was greatly improved, it information that makes it appear that planes are flying over was still mono and limited by the broadcast signal. your head.

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ELECTROSTATIC ADVANTAGES How can sound be reproduced by something that you are push-pull operation and is a major contributor to the sonic able to see through? Electrostatic energy makes this possible. purity of the electrostatic concept due to its exceptional linearity and low distortion. Where the world of traditional loudspeaker technology deals with cones, domes, diaphragms and ribbons that Since the diaphragm of an electrostatic speaker is uniformly are moved with magnetism, the world of e

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Full Range Operation The most significant advantage of MartinLogan’s exclusive narrow, fixed bandwidth of the frequency range, and then transducer technology reveals itself when you look at combined electrically so that the sum of the parts equals examples of other loudspeaker products on the market today. the total signal. While nice in theory, we must deal with real-world conditions. The Scenario uses no crossover networks above 500 Hz because they are not needed. The Scenario consists of a In

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MARTINLOGAN EXCLUSIVES TM Curvilinear Line Source (CLS ) Vapor Deposited Film Since the beginning of audio, achieving smooth dispersion The diaphragm material used in all MartinLogan speakers has been a problem for all loudspeaker designers. Large panel employs an extremely sophisticated conductive surface transducers present even more of a challenge because the that has been vapor deposited on the polymer surface at larger the panel, the more directional the dispersion an atomic level. A propri

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ELECTROSTATIC LOUDSPEAKER HISTORY The outcome would dictate the way that future generations In the late 1800s, any loudspeaker was considered exotic. would refer to loudspeakers as being either “conventional”, Today, most of us take the wonders of sound reproduction or “exotic”. for granted. Bell Laboratory’s electrostat was something to behold. It was 1880 before Thomas Edison had invented the first This enormous bipolar speaker was as big as a door. phonograph. This was a horn-loaded diaphragm

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In 1947, Arthur Janszen, a young Naval engineer, took part to around 70 watts. As a result, many people continued in a research project for the Navy. The Navy was interested to use box speakers with cones. in developing a better instrument for testing microphone arrays. The test instrument needed an extremely accurate In the early 1960s Arthur Janszen joined forces with the speaker, but Janszen found that the cone speakers of the KLH loudspeaker company, and together they introduced period were

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FREQUENTLY ASKED QUESTIONS How do I clean my speakers? Is there likely to be any interaction between my speakers Just use a dust free cloth or a soft brush to remove the and the television in my Audio/Video system? dust from your speakers. We recommend a specialty cloth Actually, there is less interaction between a television (available through the XStatic shop at www.martinlogan.com) and an electrostatic speaker than between a television that cleans your speakers better than anything else we a

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Will excessive smoke or dust cause any problems with Could my children, pets, or myself be shocked by the my electrostatic speakers? high-voltage present in the electrostatic panel? Exposure to excessive contaminants such as smoke No. High voltage with low current is not dangerous. As a or dust may potentially affect the performance of the matter of fact, the voltage in our speakers is 10 times electrostatic membrane, and may cause discoloration less than the static electricity that builds up o

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TROUBLESHOOTING No Output Lack of Bass •Check that all your system components are turned on. •Check your speaker wires. Is the polarity correct? •Check your speaker wires and connections. •Check all interconnecting cables. Poor Imaging •Check placement. Are both speakers the same distance Weak Output, Loss of Highs from the walls? Do they have the same amount of •Check the power cord. Is it properly connected to the speaker? toe-in? Try moving the speakers away from the back and side walls. Exag