GRAS 26CI 1/2'' CCP Preamplifier with BNC Connector, Low Frequency
Freq range: 1 Hz - 200 kHz
Noise: 1.8 µV Gain: -0.35 dB
Special feature: Low frequency
The GRAS 1/2" Preamplifier GRAS 26CI is a preamplifier optimized for low frequency use together with prepolarized condenser microphones. It is a small, robust unit and uses a GRAS CCP power supply (ICP ®), e.g. GRAS 12AL. It has a very low inherent noise level, and a large dynamic range and a frequency response from below 1 Hz to above 200 kHz.
Technology
Typical applications and use
CCP inputs
Prepolarized microphones
1/2" precision microphones
High levels and high frequencies
Design
The GRAS 1/2" Preamplifier GRAS 26CI is a small, robust unit and uses a GRAS CCP power supply, e.g. GRAS 12AL. It has a very low inherent noise level, a large dynamic range and a frequency response from 1 Hz to above 200 kHz.
Its small ceramic thick-film substrate has a very high input impedance, and is shielded by a guard ring to minimise the influence of stray capacitance and microphonic interference.
The GRAS 26CI is provided with a built-in TEDS* chip, and can be programmed as a single unit with a microphone fitted. It is primarily intended for the low frequency microphone 46AZ but can be used with all GRAS 1/2" prepolarized microphones and with adapters with other microphone sizes.
It has an integrated BNC output connector. The casing is made of stainless steel for maximum strength and durability.
* Transducer Electronic Data Sheet - as proposed by IEEE-P1451.4
Specifications
Conditions: 23 °C Ambient temperature
4 mA / 24 V open loop CCP voltage
18 pF dummy microphone
3 m output coax-cable.
GRAS Sound & Vibration reserves the right to change specifications and accessories without notice.
Dimensions
Ordering info
Optional items
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3 m BNC - BNC 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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Tripod |
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Adapter for 1/4" microphone and 1/2" preamplifier |
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| GRAS RA0073 |
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 prepolarized 1/2" microphones |
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| GRAS RA0062 |
20 pF Preamplifier-input Adapter for 1/2" preamplifiers |
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1-Channel CCP Power Module with A-weighting filter |
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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.
