GRAS 26AK-S1 1/2”<br>Preamplifier with Integrated Connector, Low Frequency

Introduction

GRAS26AK-S1 is a preamplifier designed for general purpose in the laboratory and field and accommodates directly for all IEC 61094 standardized ½” externally polarized measurement microphones.

It is rugged and reliable and can handle microphone signals up to 50 Vpeak within 2 Hz to 200 kHz. The printed circuit board is made by use of thick-film substrate technology and optimized with respect to maximum suppression of microphonics and moisture rejection.

The high-quality, standard 7-pin LEMO male connector is integrated into the preamplifier and ensures that only one type of connector and cable is required for both connection and extension.

26AK-S1 is factory calibrated individually and delivered with a calibration chart stating its A-weighted and linear self-noise.

Compatibility

These preamplifiers are compatible with 1/2-inch microphones as defined in international standard IEC1094 Measurement Microphones, Part 4: Specifications for working standard microphones. The mounting thread (11.7 mm – 60 UNS-2) is compatible with other available makes of similar microphone preamplifiers.

GRAS 26AK-S1 is integrated with a 7-pin LEMO series 1B plug.