Constant current power (CCP)

Constant current power (CCP)

CCP preamplifiers connect to a CCP supply (for example the G.R.A.S. Type 12AL) via a standard coaxial cable and plug (e.g. BNC) or to an analyzer with a CCP input. In a CCP preamplifier, the power supply maintains a constant current superimposed on the same wire carrying the signal, therefore requiring only a standard coaxial cable and connector.
  1. 26CA 1/2'' CCP Standard Preamp (BNC)
    Freq range: 2.5 Hz - 200 kHz
    Noise: 1.8 µV
    Gain: -0.30 dB
    Special feature: General purpose

    G.R.A.S. 26CA 1/2'' CCP Standard Preamplifier with BNC Connector

    The G.R.A.S. 1/2" Preamplifier G.R.A.S. 26CA is a general purpose preamplifier optimized for use with prepolarized condenser microphones. It is a small,robust unit and uses a G.R.A.S. CCP power supply (ICP ®), e.g. G.R.A.S. 12AL. It has a very low inherent noise level, and a large dynamic range and a frequency response from below 2 Hz to above 200 kHz.

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    Freq range: 2.5 Hz - 200 kHz
    Noise: 1.8 µV
    Gain: -0.45 dB
    Special feature: For confined spaces

    G.R.A.S. 26CT 1/4" CCP Standard Preamplifier with SMB Connector, Very Short

    The G.R.A.S. 26CT 1/4" Preamplifier is a very small preamplifier optimized for use with prepolarized condenser microphones. It is a robust unit and uses a CCP power supply. It has a very low inherent noise level, a large dynamic range and a frequency response from below 2 Hz to above 200 kHz.

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  3. /
    Freq range: 1 Hz - 200 kHz
    Noise: 1.8 µV
    Gain: -0.35 dB
    Special feature: Low frequency

    G.R.A.S. 26CI 1/2'' CCP Preamplifier with BNC Connector, Low Frequency

    The G.R.A.S. 1/2" Preamplifier G.R.A.S. 26CI is preamplifier for optimized for low frequency use together with prepolarized condenser microphones. It is a small,robust unit and uses a G.R.A.S. CCP power supply (ICP ®), e.g. G.R.A.S. 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.

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  4. 26CB-HT 1/4" CCP Standard Preamp (Mdot)
    Freq range: 2.5 Hz - 200 kHz
    Noise: 1.8 µV
    Gain: -0.35 dB
    Special feature: High temperatures

    G.R.A.S. 26CB-HT 1/4" CCP Standard Preamplifier with Microdot Connector

    The G.R.A.S. 1/4" preamplifier is a general-purpose preamplifier optimized for use with prepolarized condenser microphones. It is a small, robust unit and uses a G.R.A.S. CCP power supply, e.g. G.R.A.S. 12AL. It has a very low inherent noise level, a large dynamic range, and a frequency response from below 2 Hz to above 200 kHz.

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  5. 26CA-HT 1/2" CCP High Temperature Preamp (BNC)
    Freq range: 2.5 Hz - 200 kHz
    Noise: 1.8 µV
    Gain: -0.30 dB
    Special feature: High Temperature

    G.R.A.S. 26CA-HT 1/2'' CCP High Temperature Preamplifier with BNC Connector

    The G.R.A.S. 26CA-HT 1/2" CCP High Temperature Preamp (BNC) is a 1/2" CCP preamplifier for use with prepolarized microphones. It is optimized for high-temperature applications up to 120 °C (248 °F).  It has a low inherent noise level, a large dynamic range and a frequency response from 2 Hz to 200 kHz.

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  6. 26CK 1/2'' CCP Standard Preamp, Very Short (Mdot)
    Freq range: 2.5 Hz - 200 kHz
    Noise: 1.8 µV
    Gain: -0.45 dB
    Special feature: For confined spaces

    G.R.A.S. 26CK 1/2” CCP Standard Preamplifier with Microdot Connector, Very Short

    The G.R.A.S. 26CK ½” Preamplifier, Very Short is a very small preamplifier optimized for use with prepolarized condenser microphones. It is a robust unit that uses a constant current power (CCP) supply. The 26CK has a very low inherent noise level, a large dynamic range, and a frequency response from below 2 Hz to above 200 kHz.

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  7. 26CF 1/2'' CCP Preamp, Gain, Filters (BNC)
    Freq range: 2.5 Hz - 200 kHz
    Noise: 1.8 µV
    Gain: -0.25 / +20 dB
    Special feature: 0/20 dB gain, A-weighting and HP filters

    G.R.A.S. 26CF 1/2'' CCP Preamplifier with BNC Connector, Gain and Filters

    The G.R.A.S. 1/2-inch Preamplifier G.R.A.S. 26CF is a general purpose preamplifier optimized for use with prepolarized condenser microphones. It is a small, robust unit and uses a G.R.A.S. CCP power supply, e.g. G.R.A.S. 12AL. It has low inherent noise level, a large dynamic range and a frequency response from 2.5 Hz to 100 kHz.

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  8. 26CB 1/4" CCP Standard Preamp (Mdot)
    Freq range: 2.5 Hz - 200 kHz
    Noise: 1.8 µV
    Gain: -0.35 dB
    Special feature: General purpose

    G.R.A.S. 26CB 1/4" CCP Standard Preamplifier with Microdot Connector

    The G.R.A.S. 26CB 1/4" CCP Standard Preamplifier with Microdot Connector is a general-purpose preamplifier optimized for use with prepolarized condenser microphones. It is a small, robust unit and uses a G.R.A.S. CCP power supply, e.g. G.R.A.S. 12AL. It has a very low inherent noise level, a large dynamic range, and a frequency response from below 2 Hz to above 200 kHz.

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  9. 26CC 1/4" CCP Standard Preamp (SMB)
    Freq range: 2.5 Hz - 200 kHz
    Noise: 1.8 µV
    Gain: -0.35 dB
    Special feature: General purpose

    G.R.A.S. 26CC 1/4" CCP Standard Preamplifier with SMB Connector

    The G.R.A.S. 26CC 1/4" Preamplifier is a general purpose preamplifier optimized for use with prepolarized condenser microphones. It is a small, robust unit and uses a G.R.A.S. CCP power supply, e.g. G.R.A.S. 12AL. It has a very low inherent noise level, a large dynamic range and a frequency response from below 2 Hz to above 200 kHz.

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  10. 26CS 1/4" CCP Standard Preamp, Very Short  (Mdot)
    Freq range: 2.5 Hz - 200 kHz
    Noise: 1.8 µV
    Gain: -0.45 dB
    Special feature: For confined spaces

    G.R.A.S. 26CS 1/4" CCP Standard Preamplifier with Microdot Connector, Very Short

    The G.R.A.S. 26CS 1/4" Preamplifier is a very small preamplifier optimized for use with prepolarized condenser microphones. It is a robust unit and uses a CCP power supply. It has a very low inherent noise level, a large dynamic range and a frequency response from below 2 Hz to above 200 kHz.

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  11. 26CG 1/4" CCP Preamp, Low Frequency (Mdot)
    Freq range: 1 Hz - 200 kHz
    Noise: 1.8 µV
    Gain: -0.35 dB
    Special feature: For low-frequency applications

    G.R.A.S. 26CG 1/4" CCP Preamplifier with Microdot Connector, Low Frequency

    The G.R.A.S. 26CG ¼″ CCP Preamplifier is a small robust unit optimised for acoustic measurements using condenser microphones. It has a very low inherent noise level, a wide dynamic range, and a wide frequency response from below 1 Hz to above 200 kHz.

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