Thiel Coherent Source CS2.7 Owner's Information page 5

Spacing
Because of their very wide, even dispersion of energy, the CS2.7s can usually be placed farther apart
than most other speakers. Optimum imaging is usually achieved when the speakers are almost as far
apart as each speaker is from the listener, although this will depend on the width of the room—narrow
rooms require more narrow placement. If the speakers are too far apart for the room, there will tend to
be a "hole" in the middle of the soundstage; if they are too close together, the image will be compressed
and will not achieve optimum width.
Aiming
Depending on the room in which they are used, the CS2.7s can be aimed anywhere between straight
ahead and angled in so they point directly at the listener. Straight-ahead placement produces the widest,
most natural soundstage. However, if it is not possible to place the speakers the desired distance from
side walls, a toed-in position will reduce the strength of side wall reflections and, in these cases, provide
a more focused spatial presentation.
Bass
In general, when a speaker is close to a wall, the bass response is stronger; placing a speaker in a corner
will make it even more so. The CS2.7s are designed to provide accurate bass when positioned away
from all walls—the same position that provides the best imaging.
Listener position
The CS2.7s provide broad dispersion of energy at all frequencies and therefore provide good results
throughout a large listening area. Best imaging is provided for a listener centered in front of the speak-
ers. Optimum accuracy of timbre and depth perspective is provided for a seated listener who is eight or
more feet away from the speakers.
Placement suggestions
Some people have restraints on speaker placement
because of room size, shape, or aesthetic consider-
ations and cannot meet one or more of the above
placement recommendations. They should not be
discouraged from investing in CS2.7s. It is our opin-
ion, that due to their unipolar, point source radiation
3' 8' 3'
pattern, their very even, wide dispersion, and the co-
axial mounting of the tweeter and midrange drivers,
the CS2.7s fare better under difficult circumstances
than most other high quality speaker systems. To help
with placement, the following suggestions are given
as a starting point for a variety of rooms.
Figure 3 shows an average size room. Gener-
ally, it is best to start with short wall placement. This
arrangement provides sufficient space behind the
8-10' Listening Distance
speakers, allows the listener to be far enough away
from the speakers, and still maintains some distance
between the listening position and the wall behind
the listener. Since the speakers may be near side
walls, in order to keep spacing between the speakers
wide, toeing-in the speakers is suggested.
Figure 3. Average listening room
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