Thiel CS6 Technical Information

Thiel CS6 Technical Information

Coherent source loudspeaker
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Technical Information

THIEL CS6
Coherent Source
®
Loudspeaker
This paper describes some of the technical performance aspects, design
considerations and features of the THIEL model CS6 loudspeaker system. It is
intended to supply information for those who are interested in such matters. It is not
intended to imply that good measured technical performance is sufficient to
guarantee good sonic performance.
THIEL • 1026 Nandino Boulevard • Lexington, Kentucky 40511 • USA
Telephone: 859-254-9427 • Fax: 859-254-0075 • E-mail: mail@thielaudio.com
Web: www.thielaudio.com
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Summary of Contents for Thiel CS6

  • Page 1: Technical Information

    Loudspeaker This paper describes some of the technical performance aspects, design considerations and features of the THIEL model CS6 loudspeaker system. It is intended to supply information for those who are interested in such matters. It is not intended to imply that good measured technical performance is sufficient to guarantee good sonic performance.
  • Page 2 All our efforts have been directed toward achieving extremely faithful translation of all tonal, spatial, transient and dynamic information supplied by the amplifier. THIEL speakers are not intended to mask or mitigate shortcomings of the recording or other components in the music playback system.
  • Page 3 Copper pole sleeve. Made by THIEL. Tweeter 1" (1.2" radiating area) with anodized aluminum dome. Underhung coil (short coil/long gap) motor system. Linear travel pk-pk. Copper pole sleeve. Ferrofluid. Made by THIEL. 27 Hz - 34 KHz minimum 10 86 dB @ 2.8 v-1m...
  • Page 4: Frequency Response

    Since frequency response errors are a measure of tonal imbalances which alter music’s tonal characteristics, we believe that accurate frequency response is an absolute requirement for a truly good speaker. Our design goal for the CS6 was to achieve accuracy in the design prototype of 1 dB and a production tolerance of 1 dB.
  • Page 5 The upper graph of figure 5 shows the on-axis frequency response of the CS6. It is uniform within 1.5 dB from 29 Hz to 18 KHz. Subjectively even more important is the octave-averaged frequency response, shown offset 10 dB.
  • Page 6: Time Response

    360 phase rotation at each crossover point. Since 1978 THIEL has employed first order (6dB/octave) crossover systems in all our Coherent Source speaker systems. A first order system is the only type that can achieve perfect phase coherence, no time smear, uniform Figure 7 Crossover step response frequency response, and uniform power response.
  • Page 7: Energy Storage

    To greatly reduce this effect the CS6 drivers all incorporate a copper sleeve around the center pole. With this sleeve any changes in the magnet’s strength induces an electrical current in the sleeve which generates a magnetic field that is opposed to and practically cancels the original change.
  • Page 8 By this mechanism the frequency response of the speaker is modulated by driver excursion. This problem has been virtually eliminated in all the CS6 drivers. The short coil design results in the entire coil surrounding the pole in all positions and therefore the coil’s inductance does not change with the diaphragm position.

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