The high distortion limit together with an extremely low inherent noise level gives a wide dynamic range. ¼" Microphone Preamplifier Type 2670 is a Falcon Range product for precision acoustic measurements with Brüel & Kjær’s wide range of condenser microphones. You can connect ¼" microphones directly and 1/8-inch types using an adaptor. 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 (CIC) technique.
The low output impedance and high output current capability mean that you can use long cables between the preamplifier and your measuring instrument without loss of signal quality. The preamplifier is supplied in an elegant yet strong plastic box made from recyclable materials.