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MartinLogan Logos [12/22] Terminology terminology terminology terminology terminology
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Page 12
Logos User's Manual
Your RoomYour Room
Your RoomYour Room
Your Room
This is one of those areas that requires both a little
background to understand and some time and experi-
mentation to obtain 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 encompass-
ing from 10' to as much as 40'! Your room participates in
Room Acoustics
TerminologyTerminology
TerminologyTerminology
Terminology
Standing WavesStanding Waves
Standing WavesStanding Waves
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' wave-
length. Your room will reinforce that specific fre-
quency if one of the dominant dimensions is 10'.
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 get away from this
phenomenon.
this wave experience like a 3 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.
Reflective Surfaces (near-field reflections)Reflective Surfaces (near-field reflections)
Reflective Surfaces (near-field reflections)Reflective Surfaces (near-field reflections)
Reflective Surfaces (near-field reflections). The hard
surfaces of your room, particularly if close to your
speaker system, will reflect those waves back into
the room over and over again, confusing the clarity
and imaging of your system. The smaller sound
waves are mostly effected here and occur in the mid
and high frequencies. This is where voice and
frequencies as high as the cymbals can occur.
Содержание
- User s manual 1
- Contents 2
- Dispersion characteristics 14 2
- Glossary 18 2
- History 4 2
- Home theatre 15 2
- Important 2
- Important contents 2
- Installation options 8 2
- Introduction 3 2
- Logos bracket assembly setup 10 2
- Logos specifications 20 2
- Martin logan exclusives 7 2
- Operation 9 2
- Questions 16 2
- Room acoustics 12 2
- The electrostatic concept 6 2
- Troubleshooting 17 2
- Introduction 3
- History 4
- An electromagnetic transducer an electromagnetic transducer an electromagnetic transducer an electromagnetic transducer an electromagnetic transducer 6
- An electrostatic transducer an electrostatic transducer an electrostatic transducer an electrostatic transducer an electrostatic transducer 6
- The electrostatic concept 6
- Curvilinear line source 7
- Curvilinear line source curvilinear line source curvilinear line source curvilinear line source curvilinear line source 7
- Martin logan exclusives 7
- Mechanical acoustical mechanical acoustical mechanical acoustical mechanical acoustical mechanical acoustical tone shaping tone shaping tone shaping tone shaping tone shaping 7
- Mechanical acoustical tone shaping 7
- Transducer integrity 7
- Transducer integrity transducer integrity transducer integrity transducer integrity transducer integrity 7
- Vapor deposited film 7
- Vapor deposited film vapor deposited film vapor deposited film vapor deposited film vapor deposited film 7
- Installation options 8
- Ac power connection 9
- Ac power connection ac power connection ac power connection ac power connection ac power connection 9
- Operation 9
- Signal connection 9
- Signal connection signal connection signal connection signal connection signal connection 9
- Logos bracket assembly 10
- Logos bracket assembly setup revised 3 99 10
- Logos user s manual page 10 revised 10
- Mounting the logos on the wall or ceiling 10
- Revised contents of accesory kit 10
- Logos user s manual 11
- Page 11 11
- Room acoustics 12
- Terminology 12
- Terminology terminology terminology terminology terminology 12
- Your room 12
- Your room your room your room your room your room 12
- Rules of thumb 13
- Rules of thumb rules of thumb rules of thumb rules of thumb rules of thumb 13
- As you can see from the illustrations your logos speaker projects a controlled dispersion pattern see figure 2 this vertical dispersion profile minimizes interactions with the floor and the ceiling 14
- Controlled horizontal dispersion 14
- Controlled horizontal dispersion controlled horizontal dispersion controlled horizontal dispersion controlled horizontal dispersion controlled horizontal dispersion 14
- Controlled vertical dispersion 14
- Controlled vertical dispersion controlled vertical dispersion controlled vertical dispersion controlled vertical dispersion controlled vertical dispersion 14
- Dispersion characteristics 14
- Your logos launches a 30 degree dispersion pattern when viewed from above this horizontal dispersion field gives you a choice of good seats for the performance while minimizing interaction with side walls see figure 1 14
- Home theatre 15
- Questions 16
- Lack of bass lack of bass lack of bass lack of bass lack of bass 17
- Low frequency 60hz hum low frequency 60hz hum low frequency 60hz hum low frequency 60hz hum low frequency 60hz hum 17
- No output no output no output no output no output 17
- Popping and ticking sounds funny noises popping and ticking sounds funny noises popping and ticking sounds funny noises popping and ticking sounds funny noises popping and ticking sounds funny noises 17
- Troubleshooting 17
- Weak output loss of highs weak output loss of highs weak output loss of highs weak output loss of highs weak output loss of highs 17
- Glossary 18
- Specifications 20
- 5 0 5 0 5 0 5 0 5 0 22
- Back cover 22
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