½-INCH MICROPHONE PREAMPLIFIER WITH INSERT VOLTAGE FACILITY
Designed to allow calibration of ½" and 1" condenser microphones by the insert voltage technique
TYPE 2673
Designed 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.
Code | Lower frequency [Hz] | Higher frequency [Hz] | Maximum Temperature [°C] | Maximum Temperature [°F] | Calibration facility |
---|---|---|---|---|---|
-2673--- | 30 Hz | 200 kHz | 60 °C | 140 °F | None |
-2673-T-- | 30 Hz | 200 kHz | 60 °C | 140 °F | None |
-2673-W-001- | 3 Hz | 200 kHz | 60 °C | 140 °F | None |
-2673-W-002- | 30 Hz | 200 kHz | 60 °C | 140 °F | None |
-2673-W-007- | 30 Hz | 200000 Hz | 80 °C | 176 °F | CIC |
-2683--- | 250 Hz | 10 kHz | 60 °C | 140 °F | CIC |
File |
Description |
Type |
Languages |
---|---|---|---|
Product Data: 1/2-inch Microphone Preamplifier Type 2673 | Product Data: 1/2-inch Microphone Preamplifier Type 2673 |
Technical Document | English |
Polarization | Classical |
Lower frequency [Hz] | 30 Hz, 3 Hz, 250 Hz |
Higher frequency [Hz] | 200 kHz, 10 kHz, 200000 Hz |
Diameter | 1/2 inch |
Minimum Temperature [°C] | -20 °C |
Maximum Temperature [°C] | 60 °C, 80 °C |
Minimum Temperature [°F] | -4 °F |
Maximum Temperature [°F] | 140 °F, 176 °F |
Connector | Lemo 7-pin |
Calibration facility | None, CIC |
List of accessories available for all variants of this family
Type 2673 consists of a high impedance input stage and an output stage giving a low output impedance for driving long cables and the Driven Guard surrounding the input stage. The thread which accepts the microphone cartridge is isolated from the preamplifier housing to allow an insert-voltage signal to be applied in series with the microphone for determination of the microphone’s open-circuit sensitivity. ½-inch Microphone Preamplifier Type 2673 is very similar in design and performance to Type 2669. The main difference is that Type 2673 includes an insert voltage calibration facility.
This will bring together HBM, Brüel & Kjær, nCode, ReliaSoft, and Discom brands, helping you innovate faster for a cleaner, healthier, and more productive world.
This will bring together HBM, Brüel & Kjær, nCode, ReliaSoft, and Discom brands, helping you innovate faster for a cleaner, healthier, and more productive world.
This will bring together HBM, Brüel & Kjær, nCode, ReliaSoft, and Discom brands, helping you innovate faster for a cleaner, healthier, and more productive world.
This will bring together HBM, Brüel & Kjær, nCode, ReliaSoft, and Discom brands, helping you innovate faster for a cleaner, healthier, and more productive world.
This will bring together HBM, Brüel & Kjær, nCode, ReliaSoft, and Discom brands, helping you innovate faster for a cleaner, healthier, and more productive world.