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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 
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 
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.

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.

8'

2.5'

3'

10'

8'

3'

14'

2.5'

18'

8-10' Listening Distance

Figure 3. Average listening room

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Summary of Contents for Coherent Source CS2.7

Page 1: ...THIEL Live Inside The Music Model CS2 7 Coherent Source Loudspeaker System Owner Information Made In USA ...

Page 2: ...Each predecessor has received accolades from audiophile journalists and music lovers worldwide As we have developed replacements to this series of loudspeaker the design goals have remained the same but we have strived to improve upon resolution of detail reproduction of images and soundstages dynamic capability and tonal purity Without question our CS2 7 is our best result in this series of louds...

Page 3: ...chieving extremely faithful translation of all tonal spatial and dynamic information as supplied by the amplifier CS2 7s are not intended to mitigate or mask shortcomings of the recording or other components in the playback system We believe this approach is the only way to provide the potential of experiencing all the subtle aspects that help make recorded music a most enjoyable human experience ...

Page 4: ...rceived timbre to be altered and the spatial characteristics to be confused Figure 1 illustrates the problems caused by early side wall reflections When the speaker is placed too close to side walls the difference in arrival times between the primary sound waves and the reflected sound waves is too short for the brain to discriminate between them Figure 2 illustrates the advantages of placing the ...

Page 5: ...eaker 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 ...

Page 6: ...ovides an ample amount of space around the speakers to reduce unwanted reflections and should give excellent spatial performance and a very open sound Other placement options in this room include wider spacing between the speakers add ing toe in as the spacing increases increased space between the speaker and the back wall to improve imaging depth Various listening position dis tances can also be ...

Page 7: ...ce are able to rock slightly and will vibrate in reaction to forces the speaker generates to move the driver diaphragms Every action has an equal and opposite reaction This motion slightly reduces the music s clarity To eliminate this effect the CS2 7s can be used with four stabilizer feet on uneven surfaces or on carpeted floors to provide a more solid footing and allow the speaker to couple more...

Page 8: ... power Most everyone will be happier with a 100 watt amplifier of high sonic quality than a 200 watt amplifier of mediocre sonic quality For this reason we feel there is no substitute for listening in making your amplifier decision The question how much power do I need does not have the simple answer most people expect because it is not determined only by the loudspeaker s efficiency but also by t...

Page 9: ...an be damaged by excessive moisture dry ness or direct sunlight When cleaning your speakers avoid using oils waxes or polishes that contain silicone We recommend Endust Dusty grilles can be cleaned by using the upholstery attachment of a vacuum cleaner SERVICE If your speaker system requires service contact your authorized THIEL dealer If you need to contact THIEL directly service information and ...

Page 10: ...Amplitude Response 35Hz 20 kHz 2 5 dB Phase Response Minimum 10 Sensitivity 87 dB 2 8 V 1m Impedance 4 Ω 2 4 Ω minimum 160Hz Recommended Power 100 400 watts Size w x d x h 11 x 16 7 x 41 inches 28 x 42 4 x 104 cm Weight 77 lbs 35 kg 11 0 41 0 16 7 9 ...

Page 11: ...ch sound pressure levels in excess of 95 decibels with peaks of over a 105 decibels For your protection the list below identifies sound levels for various noises Information courtesy of the Deaf ness Research Foundation and the CEA LIMITED WARRANTY THIEL warrants every THIEL model CS2 7 system against defects in materials and workmanship to the original owner for a period of ten years from the dat...

Page 12: ...www thielaudio com The Legend Continues ...

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