GRAS 26AK 1/2'' Standard Preamplifier with Integrated Connector
Freq range: 0.5 Hz to 200 kHz
Noise: 1.8 µV Gain: -0.25 dB
Special feature: General purpose
The 26AK is a 1/2" microphone preamplifier with integrated 7-pin LEMO male connector. The CCP equivalent is GRAS 26CA.
Technology
Introduction
GRAS 26AK is a preamplifier designed for general purpose in the laboratory and field and accommodates directly all IEC 61094 standardized ½” externally polarized measurement microphones.
It is rugged and reliable and can handle microphone signals up to 50 Vpeak within 0.5 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 is factory calibrated individually and delivered with a calibration chart stating its A-weighted and linear self-noise.
Compatibility
26AK is compatible with ½-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 is integrated with a 7-pin LEMO series 1B plug.
Connector
7-pin LEMO 1B male (ext. view)
Specifications
Conditions: 23 °C Ambient temperature, ±60V/+120V power supply, 18 pF dummy microphone, 3 m output cable.
Low frequency response for various microphone capacities
Max. RMS output signal for various cable loads with 120 V supply
GRAS Sound & Vibration reserves the right to change specifications and accessories without notice.
Dimensions
Ordering info
Optional items
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3 m LEMO 7-pin - LEMO 7-pin Cable |
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1/2" Microphone Holder, POM |
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1/2" Microphone Holder, Stainless Steel |
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Swivel head |
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| GRAS AL0006 |
Tripod |
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Adapter for 1/4" microphone and 1/2" preamplifier |
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Adapter for 1" microphone and 1/2" preamplifier |
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Right-angled (90º) Adapter for 1/2" Microphone and 1/2" Preamplifier |
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20 dB Attenuator for externally polarized 1/2" microphones |
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20 pF Preamplifier-input Adapter for 1/2" preamplifiers |
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2-Channel Power Module with gain, filters and SysCheck generator |
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2-Channel Universal Power Module with signal conditioning and PC interface |
GRAS Sound & Vibration reserves the right to change specifications and accessories without notice.
