Pressure chamber calibration Spektra SQ-4.1

Electro-Acoustic Coupler SQ-4.1

True pressure chamber calibration with an acoustic coupler

• Pressure chamber secondary calibration of microphones according to IEC 61094-5
• Pressure chamber secondary calibration of sound level meters and sound level measuring chains according to IEC 61672

Features SQ-4.1

• True pressure chamber calibration with an acoustic coupler
• Calibration of measuring microphones (1” capacitor and electrets microphones)
• Supply of a sound pressure level for the calibration of sound level meters and measuring chains
• Frequency range
  • 31.5 Hz…8 kHz
• Including Microphone holder fixture
• Including High-End Power Amplifier
• On request: there is a solution for 1/2‘‘ microphones available: the SQ-4.2 electroacoustic coupler of SPEKTRA