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SQ-6

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Side view of the SQ-6 electro-acoustic coupler

True pressure chamber calibration with an electro-acoustic coupler for measuring devices with ½" microphone capsules. The SQ-6 from SPEKTRA is characterized by a high sound pressure level with low distortion over the entire frequency range. Its newly developed design is aimed at user-friendliness, efficiency and at the same time impressive performance with reliable results. All components for calibration are included in the scope of delivery.

1105138

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Selected data

  • high sound pressure level (depending on frequency range and short-term peak value):
    • 10 Hz … 20 kHz = 114 dB
    • 16 Hz … 5 kHz  = 140 dB ... 148 dB
  • frequency range: 10 Hz … 20 kHz
  • low distortion over entire frequency range: < 0.3 % (THD)

Features

  • for 1/2" capsule devices
  • compact design: 60 mm × 60 mm × 42 mm (2.4 in × 2.4 in × 1.7 in)
  • 1/4" photo thread compatible mounting for various DUT arrangements
  • rotary clamp closures ensure precise and efficient alignment and sealing of sensors
  • fully symmetric electro-acoustic topology ensuring a more uniform sound field
  • easy and efficient handling

Applications

  • pressure chamber secondary calibration
    • microphones (IEC 61094-5)
    • sound level meters and sound level measuring chains (IEC 61672)
  • phase calibration of intensity probes

Scope of delivery

  • SQ-6 electro-acoustic coupler
  • standard power amplifier, including power supply
  • LS adapter (for WS2P microphones)
  • table tripod with 360° ball head, 3 working heights
  • O-rings and spacers for various ½“ microphone capsules
  • system cables and transport case

For further details, please refer to the technical data sheet. Subject to change without notice.

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