TYPE 2673
½-inch microphone preamplifier with insert voltage facility
Designed to allow calibration of ½" and 1" condenser microphones by the insert voltage technique
Angebot anfordernDesigned to allow calibration of ½" and 1" condenser microphones by the insert voltage technique, either in conjunction with the reciprocity method or with a known sound source. The insert calibration facility is used for reciprocity and insert voltage calibration of condenser microphones in accordance with IEC 1094 – 1: 1992 and ANSI S1.10.
USER SCENARIOS
- Insert voltage calibration of condenser microphones for open-circuit voltage determination
- Calibration of condenser microphones with respect to reciprocity calibration methods
- General sound measurements in connection with Brüel & Kjær condenser microphones
FEATURES
- Full electromagnetic compatibility (EMC)
- Detachable cable for easy installation
- Compact LEMO connector for connection to instrument input socket (adaptor for Brüel & Kjær connectors provided)
- Wide dynamic range
- Very low attenuation
- Diameter
- 1/2
- Connector at preamplifier
- LEMO 0B, 7-pin
- Connector at instrument/cable
- LEMO 1B, 7-pin
- Calibration facility
- Insert Voltage Calibration
- Polarization voltage support
- Yes
- Supply voltage
- ± 14 to ± 60
- Max output voltage (peak)
- 55
- Max output current (peak)
- 19
- Frequency range
- 3 to 200000
- Attenuation
- < 0.05
- Noise A-weighted, typical
- 1.8
- Noise 22,4 Hz to 300 kHz, typical
- 11
- Input impedance
- 1||0.05
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