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Акустическая Система
CLS IIz
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MartinLogan CLS IIz [6/24] Listening position

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 farther 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 refine-

ments and hear the differences of those refinements.

The Wall Behind the Listener

Near-field reflections can 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 (pages 10–11), 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

MartinLogan CLS IIz [6/24] Listening position

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