2669-B -
½-inch microphone preamplifier, tapered, including cable AO-0428, B&K connector
Designed to operate over a wide range of temperature, humidity and other environmental conditions. Connector: lemo 0B 7-pin.
Uses
- Sound measurements with Brüel & Kjær 1/2" (1", 1/4" and 1/8" with adaptor) and compatible microphones
- General-purpose preamplifier and high-impedance input probe for Brüel & Kjær measuring instruments
Features
- Full electromagnetic compatibility (EMC)
- Detachable, thin cable for easy installation
- Compact LEMO connector at preamplifier
- Patented charge-injection calibration technique for on-site calibration of the whole measuring channel including the microphone
- Wide dynamic range
- Very low inherent noise, high input impedance
- Low output impedance and high output current allows use with long extension cables
- Wide working temperature range
- Falcon™ Range product with a three-year guarantee
The preamplifier has a very high input impedance presenting virtually no load to the microphone. The high output voltage together with an extremely low inherent noise level gives a wide dynamic range.½" Microphone Preamplifier Type 2669 is a Falcon Range product for making precision acoustic measurements with Brüel & Kjær’s wide range of condenser microphones. You can connect ½" microphones directly and 1", ¼" and 1/8" types using adaptors.
The preamplifier, cable and its connectors all fulfil EMC requirements. You can verify the condition of the microphone, preamplifier and cable on-site using its patented charge injection calibration technique.
The low output impedance and high output current capability means that you can use long cables between the preamplifier and your measuring instrument without loss of signal quality. Furthermore, this Falcon™ Range microphone preamplifier comes with an extended guarantee period of three years. It is supplied in an elegant and strong plastic box made from recyclable materials.
