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SQ-6

Electro-acoustic coupler

True pressure chamber calibration for measuring devices with ½" and ¼"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.

 

APPLICATIONS

What are the SPEKTRA areas of application?
Learn more … 

Download datasheet

Key Features

Features 1

 Features
  • for ½" and ¼" capsule devices
  • compact design
  • ¼" photo thread compatible mounting for various DUT arrangements

Features 2

 
  • rotary clamp closures ensure precise and efficient alignment and sealing of sensors
  • fully symmetric electro-acoustic topology ensuring a more uniform sound field

Applications

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

System integration

 System integration
  • easy integration into system solution
  • suitable controller and software for efficient workflow

Product details

Technical data

 SQ-6
Sound fieldPressure chamber
Frequency range
 
10 Hz … 20 kHz
Max. electrical power of sound source2.4 W
Distortion factor at 94 dB< 0,3 % (THD)
Devices under test (DUTs)½"- and 1/4" microphone capsules
Maximum sound pressure level 1)

10 Hz … 20 kHz 114 dB

16 Hz …5 kHz 140 dB...148 dB

Dinensions (H × W × L)60 mm × 60 mm × 42 mm

All specifications are at room temperature unless otherwise specified. 
1) Depending on frequency range, DUT type and amplifier  

 

Scope of delivery

  • SQ-6 electro-acoustic coupler
  • power amplifier, including power supply
  • LS adapter (open grid for WS2P Microphone)
  • table tripod with 360° ball head, 3 working heights
  • system cables
  • O-rings and spacers for various ½“ and ¼" microphone capsules

Accessories (optional)

  • reference standards (recommended)
  • ½” condenser microphone capsule type LS2P or WS2P with amplifier 
  • fixture for sound level meters or heavy microphones
  • spacer kit for intensity probes

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

Performance Diagrams

Standard amplifier and both capsules with protection grid

Maximum performance with optional amplifier and both capsules with protection grid

Standard amplifier and both capsules LS-adapted

Maximum performance with optional amplifier and both capsules LS-adapted

CS Q-LEAP™ ACOUSTIC with SQ-6

CS Q-LEAP™ ACOUSTIC with SQ-6

Calibration system for measurement microphones and sound level meters

The CS Q-LEAP™ system is used for microphones and sound level meters / measurement chains with a diameter of ½'' and ¼''. It consists of the HERO™ vibration controller and the electro-acoustic coupler SQ-6.

APPLICATIONS

What are the SPEKTRA areas of application?
Learn more … 

Download datasheet

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Michael Mende
Product Manager
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+49 (0) 351 400 24 0