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CS1.5
The THIEL CS1.5 provides full-range performance
from a small, easy-to-place cabinet.
HE CS1.5 IS THE FIFTH-
generation advancement
T
of THIEL’s Coherent Source
technology in a two-way system.
With the CS1.5, THIEL has met
the challenge of achieving a very
high level of full-range performance
in a smaller, more affordable
loudspeaker.
Remarkable performance
belies its size
Small speakers may perform well in
some respects, but their deep bass
extension and dynamic range are
usually significantly compromised.
The CS1.5 offers true full-range
performance from a small speaker.
Standing only 33 inches tall, 8.5
inches wide and 11 inches deep, the
CS1.5 delivers bass to 42 Hz,
projects a realistic and threedimensional soundstage, and
provides a very high degree of tonal,
transient, and dynamic accuracy.
The CS1.5’s surprising
performance is the result of
THIEL’s years of experience in
speaker design. From its specially
designed drivers to its ruggedly built,
finely finished, and easy-to-place
cabinet, the CS1.5 only dominates
the room in the one area that
matters—great sound reproduction.
model CS1.5
• A 2-inch thick baffle, 1-inch thick
cabinet walls, and extensive internal
bracing greatly increase cabinet
stiffness. By reducing unwanted
vibration, both clarity and imaging
are improved.
• The grilleboard has rounded edges
which contribute to the speaker’s very
open sound by reducing energy
diffraction.
• Magnetically shielded to prevent
television picture distortion.
It [the CS1.5] is one of the
world’s best loudspeakers.
“
—Tom Miiller,
Adventure
The Audio
, August ’95
”
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Woofer
The 6.5-inch woofer employs a very rigid
aluminum diaphragm to eliminate cone breakup and unwanted energy storage. A special
short coil/long gap magnet system is used for
extremely low distortion and improved mid-
Aluminum diaphragm for rigidity
and transparent reproduction
Magnesium frame for rigidity
and clearer reproduction
Copper sleeve for low distortion
and exceptional attack
Two magnets with a
total weight of 2.4 pounds
for exceptional bass
control and low stray
magnetic field
Short coil / long gap
motor for very low
levels of distortion
Tweeter
The 1-inch metal
dome tweeter uses a
large magnet,
vented pole, and
reinforced rear
chamber to allow a
low resonance
frequency and a
wide bandwidth. The
result is high
frequency
reproduction of great
clarity and realism.
Phase plug for
more uniform
response
frequency
performance,
critical in a twoway system. A
copper pole
sleeve maintains
a stable magnetic
field and the
driver employs
two magnets with
a total weight of
2.4 pounds. In
conjunction with
the bass radiator,
which eliminates
bass port
resonances and
noise, the
CS1.5’s woofer
produces
uncommonly
clean and
musical bass.
The CS1.5 is a landmark speaker of the 1990s—you can get
the resolution, detail, and harmonic accuracy of $5000-
“
$10,000 speakers for only [$2190]…an astonishing speaker.
—Sam Tellig,
Stereophile
, Volume 17, Number 8, August ’94
Award winning sound
• Diapason d’or Hi-Fi (France) magazine’s 1997 “Speaker of the Year”
• The Audio Adventure magazine’s “Number One Find” for 1995
• Runner-up, Stereophile magazine’s 1994 “Loudspeaker of the Year”
• Consumer Electronics Show’s Innovations ’94 Design and
Engineering Award winner
[The CS1.5] may serve as a secret audiophile find for all
those who have to live with space restrictions.
“
—Peter Geiger,
Stereo (Germany)
, September ’97
”
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