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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.

MartinLogan electrostatic loudspeakers are known as dipolar

radiators. This means that they produce sound from 

both their fronts and their backs. Consequently, musical

information is reflected by the wall behind them and may

arrive, either in or out of step, with the information produced

by the front of the speaker. The Script was designed to

minimize these rear wall reflection interactions when

it is mounted on a wall.

Now that you know about reflective surfaces and resonant

objects, you can see how the midrange and high frequencies

can be affected. The timing of the initial wave as it radiates

to your ears, and then the reflected information as it arrives

at your ears later in time, can result in confusion of the

precious timing information that carries the clues to imaging.

Consequently the result is blurred imaging and excessive

brightness. Soft walls, curtains, wall hangings, or sound

dampeners (your dealer can give you good information here)

can be effective if these negative conditions occur.

Rules of Thumb

Dipolar Speakers and Your Room