MartinLogan Vista Specifications download pdf (Page 14)

14 Dispersion Interactions

DISPERSION INTERACTIONS

Your Vista’s launch a 30 degree horizontal dispersion pat-

tern. This horizontal dispersion field gives a choice of good

seats for the performance while minimizing interactions

with side walls (see figure 12). Make sure both speakers

stand exactly at the same vertical angle, otherwise the

image can be skewed or poorly defined. The wave launch

of both speakers is extremely accurate in both the time

and spectral domain. Consequently, small refined adjust-

ments can result in noticeable sonic improvements.

Controlled Vertical Dispersion

As you can see from the illustrations, your Vista speakers

project a controlled dispersion pattern (see figure 13). Each

Vista is a 44 inch line source beginning 15 inches above

the base. This vertical dispersion profile minimizes inter-

actions with the floor and the ceiling.

It is a known fact that as the sound wave becomes pro-

gressively smaller than the transducer producing it,

the dispersion of that wave becomes more and more

narrow, or directional. This fact occurs as long as the

transducer is a flat surface. Large flat panel speakers

exhibit venetian blind effects due to this phenomenon.

This is one reason why many manufacturers opt for small

drivers (i.e. tweeters and midrange) to approximate

what is known as a point source wave launch.

Historically, most attempts to achieve smooth dispersion

from large flat panel transducers resulted in trade-offs.

After exhaustive testing of many different methods, we

conceived an elegantly simple, yet intensely hand craft-

ed process. By curving the radiating surface, we create

the effect of a horizontal arc. This allows the engineers at

MartinLogan to control the high frequency dispersion pat-

tern of our transducers.

Three Major Types of Dispersion

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 12–13. A controlled 30 degree cylindri-

cal wave-front, a MartinLogan exclusive, offers

optimal sound distribution with minimal room

interaction. The result is solid imaging with a

wide listening area.

Controlled Horizontal Dispersion

1 2 ... 9 10 11 12 13 14 15 16 17 18 19 ... 27 28

Comments to this Manuals

No comments

MartinLogan Vista Specifications Page 14

Comments to this Manuals

Related products and manuals for Soundbar speakers MartinLogan Vista